Please read this everything prospectus carefully and keep it for your records and for future reference. This prospectus is filed with the Securities and Exchange Commission (“SEC” or “Commission”). The SEC has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense. This prospectus and the SAI can also be obtained free of charge from us by calling 1-800-862-6668 or from the SEC’s website (www.sec.gov).

financial distress, we may not be able to meet our obligations to you. All guarantees and obligations under any Guarantee Period are subject to our financial strength and claims paying ability. See Section 13. Further Information About Union Security pay a Death Benefit?Insurance Company for financial information about Union Security Insurance Company.

Union Security Insurance Company ("Union Security" or the "Company") is the issuer of the contracts.Contracts. Union Security is a Kansas corporation founded in 1910. It is qualified to sell life insurance and annuity contracts in the District of Columbia and in all states except New York. Union Security's offices are located at 440 Mount Rushmore Road, Rapid City, South Dakota 57701.

Union Security is a wholly ownedwholly-owned subsidiary of Assurant, Inc. ("Assurant" orCMFG Life Insurance Company (“CMFG Life”), an Iowa life insurance company. CMFG Life’s ultimate parent is CUNA Mutual Holding Company (“CM Holding”), a mutual insurance holding company organized under the "Parent")laws of Iowa. CM Holding is an insurance and Assurant isfinancial services company that provides products and services to credit unions, credit union members, and individual consumers. All of the ultimate parentguarantees and commitments under the policies are general obligations of Union Security. Assurant is a premier providerNone of specialized insurance products and related services in North America and selected other international markets. Its stock is traded on the New York Stock ExchangeUnion Security’s affiliated companies has any legal obligation to back Union Security’s obligations under the symbol AIZ.policies.

All of the guarantees and commitments under the contracts including the Death Benefit and Annuity Payout, and the guarantees under the Fixed Accumulation Feature and any Guarantee Period are general obligations of Union Security.Security, subject to Union Security's financial strength and claims-paying ability. None of Union Security's affiliated companies has any legal obligation to back Union Security's obligations under the contracts.

On April 1, 2001, Union Security entered into an agreement with Talcott Resolution Life and Annuity Insurance Company ("Talcott Resolution") to co-insure the obligations of Union Security under the variable annuity Contracts and to provide administration for the Contracts. Talcott Resolution was originally incorporated under the laws of Wisconsin on January 9, 1956, and subsequently redomiciled to Connecticut. Talcott Resolution's corporate offices are located at 1 Griffin Road North, Windsor, Connecticut 06095-1525.American Row, Hartford, CT 06103. Talcott Resolution is ultimately controlled by Henry Cornell, David I. Schamis,A. Michael Muscolino and Robert E. Diamond.Alan Waxman.

The Sub-Accounts are part of Talcott Resolution Life and AnnuityVariable Account D of Union Security Insurance Company, Separate Account Seven, a segregated asset account of Talcott Resolution.Union Security Insurance Company. The Separate Account wasis registered as a unit investment trust under the 1940 Act and was established on April 1, 1999.October 14, 1987. The Separate Account meets the definition of “separate account” under federal securities laws. The Separate Account holds only assets for variable annuity contracts.

The Separate Account:

Talcott ResolutionUnion Security is obligated to pay all amounts guaranteed to investors under the Contract. We do not guarantee the investment results of anythe Separate Account.

Information regarding each Fund, including (i) its name, (ii) its type, (iii) its investment adviser and any sub-investment adviser, (iv) current expenses, and (v) performance is available in all states.

If any federal securities laws or regulations, or their present interpretation, change to permit us to vote Fund shares on our own, we may decide to do so. You may attend any shareholder meeting at which Fund shares held for your Contract may be voted. After we begin to make Annuity Payouts to you, the number of votes you have will decrease. There is no minimum number of shares for which we must receive timely voting instructions before we vote the shares. Therefore, as a result of proportional voting, the instruction of a small number of Owners could determine the outcome of matters subject to shareholder vote.

We may eliminate the shares of any of the Funds from the Contract for any reason and we may substitute shares of another registered investment company for the shares of any Fund already purchased or to be purchased in the future by the Separate Account. To the extent required by the Investment Company Act of 1940 (the "1940 Act"), substitutions of shares attributable to your interest in a Fund will not be made until we have the approval of the Commissionsatisfied applicable law and we have notified you of the change.

In the event of any substitution or change, we may, by appropriate endorsement, make any changes in the Contract necessary or appropriate to reflect the substitution or change. If we decide that it is in the best interest of Contract Owners, the Separate Account may be operated as a management company under the 1940 Act or any other form permitted by law, may be deregistered under the 1940 Act in the event such registration is no longer required, or may be combined with one or more other Separate Accounts.

The availability of these types of arrangements creates an incentive for us to seek and offer Funds (and classes of shares of such Funds) that pay us revenue sharing. Other funds (or available classes of shares) may have lower fees and better overall investment performance.

Any amount you allocate to our General Account under this Contract earns a guaranteed interest rate beginning on the date you make the allocation. The guaranteed interest rate continues for the number of years you select, up to a maximum of ten years. We call this a Guarantee Period. At the end of your Guarantee Period, your Contract Value, including accrued interest, will be allocated to a new Guarantee Period that is the same length as your original GuaranteedGuarantee Period. However, you may reallocate your Contract Value to different then available Guarantee Periods or to the Sub-Accounts. If you decide to reallocate your Contract Value, you must do so by sending us a written request. We must receive your written request at least three business days before the end of your Guarantee Period. The first day of your new Guarantee Period or other reallocation will be the day after the end of your previous Guarantee Period. We will notify you at least 45 days and not more than 75 days before the end of your Guarantee Period.

Each Guarantee Period has its own guaranteed interest rate, which may differ from other Guarantee Periods. We may,will, at our discretion, change the guaranteed interest rate for future Guarantee Periods. These changes will not affect the guaranteed interest rates we are paying on current Guarantee Periods. The guaranteed interest rate will never be less than an effective annual rate of 3%. Union Security's Management makes the final determination on the guaranteed interest rates to be declared. We cannot predict or assure the level of any future guaranteed interest rates in excess of an effective annual rate of 3%.

We declare the guaranteed interest rates from time to time as market conditions dictate. We advise you of the guaranteed interest rate for a Guarantee Period at the time we receive a Premium Payment from you, or at the time we execute a transfer you have requested, or at the time a Guarantee Period is renewed. You may obtain information concerning the guaranteed interest rates that apply to the various Guarantee Periods. You may obtain this information from our home office or from your sales representative at any time.

We do not have a specific formula for establishing the guaranteed interest rates for the Guarantee Periods. Guaranteed interest rates may be influenced by the available interest rates on the investments we acquire with the amounts you allocate for a particular Guarantee Period. Guaranteed interest rates do not necessarily correspond to the available interest rates on the investments we acquire with the amounts you allocate for a particular Guarantee Period. In addition, when we determine guaranteed interest rates, we may consider:

•  the duration of a Guarantee Period;Period,

•  regulatory and tax requirements;requirements,

•  sales and administrative expenses we bear;bear,

•  risks we assume;assume,

•  our profitability objectives;objectives, and

•  general economic trends.

Guaranteed Periods areAsset Rebalancing is not available for Contracts issued in Kansas, Maryland, North Carolina, Nevada, Oregon, Pennsylvania, South Carolina, Utah, Vermont and Washington.the Guarantee Periods.

Except as described below, we will apply an MVA to any general account value invested in a Guarantee Period that is surrendered, transferred, or otherwise paid out (annuitized) before the end of athe Guarantee Period. For example, we will apply an MVA to the general account value that we pay as an amount applied to distributions on the death of the Annuitant, an Annuity Payout option, or as an amount paid as a single sum in lieu of an Annuity Payout.

The purpose of the MVA is to generally transfer the risk to you of prematurely liquidating your investment. The MVA reflects both the amount of time left in your Guarantee period and the difference between the rate of interest credited to your current Guarantee period and the interest rate we are crediting to a new Guarantee Period with a duration equal to the amount of time left in your Guarantee Period. If your Guarantee Period's rate of interest is lower than the sum of the new Guarantee Period interest rate and the MVA factor, then the application of the MVA will reduce the amount you receive or transfer. Conversely, if your Guarantee Period's rate of interest is higher than the sum of the rate of interest we are crediting for the new Guarantee Period and the MVA factor, then the application of the MVA will increase the amount you receive or transfer. You will find a sample MVA calculation in Appendix I.B.

We do not apply ana MVA to withdrawals and transfers of the general account value in the following circumstances:

The Contract is an individual or group tax-deferred variable annuity contract. It is designed for retirement planning purposes and may be purchased by any individual, group or trust, including:

•  Any trustee or custodian for a retirement plan qualified under Sections 401(a) or 403(a) of the Code;

•  Individual Retirement Annuities adopted according to Section 408 of the Code;

•  Employee pension plans established for employees by a state, a political subdivision of a state, or an agency of either a state or a political subdivision of a state; and

•  Certain eligible deferred compensation plans as defined in Section 457 of the Code.

We will no longer accept additional Premium Payments into any individual annuity contract funded through a 403(b) plan.

The examples above represent Qualified Contracts, as defined by the Code. In addition, individuals and trusts can also purchase Contracts that are not part of a tax qualified retirement plan. These are known as Non-Qualified Contracts.

If you are purchasing the Contract for use in an IRA or other qualified retirement plan, you should consider other features of the Contract besides tax deferral, since any investment vehicle used within an IRA or other qualified plan receives tax-deferred treatment under the Code.

This Contract is no longer available for new sales.

Premium Payments sent to us must be made in U.S. dollars and checks must be drawn on U.S. banks. We do not accept cash, third party checks or double endorsed checks. We reserve the right to limit the number of checks processed at one time. If your check does not clear, your purchase will be cancelled and you could be liable for any losses or fees incurred. A check must clear our account through our Administrative Office to be considered to be in good order.

Premium Payments may not exceed $1 million without our prior approval. We reserve the right to impose special conditions on anyone who seeks our approval to exceed this limit.

You and your Annuitant must not be older than age 85 on the date that your Contract is issued. You must be of minimum legal age in the state where the Contract is being purchased or a guardian must act on your behalf. Optional riders are subject to additional maximum issue age restrictions.

It is important that you notify us if you change your address. If your mail is returned to us, we are likely to suspend future mailings until an updated address is obtained. In addition, we may rely on a third party, including the US Postal Service, to update your current address. Failure to give us a current address may result in payments due and payable on your annuity contract being considered abandoned property under state law, and remitted to the applicable state.

Your initial Premium Payment will be invested within two Valuation Days of our receipt of both a properly completed application/application order request and the Premium Payment. If we receive your subsequent Premium Payment before the close of the New York Stock Exchange, it will be priced on the same Valuation Day. If we receive your Premium Payment after the close of the New York Stock Exchange, it will be invested on the next Valuation Day. If we receive your subsequent Premium Payment on a Non-Valuation Day, the amount will be invested on the next Valuation Day. Unless we receive new instructions, we will invest the Premium Payment based on your last allocation instructions on record. We will send you a confirmation when we invest your Premium Payment.

If the request or other information accompanying the initial Premium Payment is incomplete when received, we will hold the money in a non-interest bearing account for up to five Valuation Days (from the Valuation Day that we actually receive your initial Premium Payment at our Administrative Office together with the Premium Payment) while we try to obtain complete information. If we cannot obtain the information within five Valuation Days, we will either return the Premium Payment and explain why the Premium Payment could not be processed or keep the Premium Payment if you authorize us to keep it until you provide the necessary information.

If you purchasereceive services for your Contract from a third-party financial intermediary who charges an advisory fee for their services, that fee is in a state that requires usaddition to return your Premium Payment instead ofContract fees and expenses. If you elect to pay the advisory fee by taking withdrawals from your Contract Value, if you exercise your 10-day rightthe deduction for that fee will reduce, perhaps significantly, death benefits and other guaranteed benefits under the Contract and may be subject to cancel, we will allocate your initial Premium Payment tofederal and state income taxes and a 10% federal penalty tax. See Section 7.c. Charges and Fees, Section 9. Death Benefits and Section 13. Federal Tax Considerations for more information.

Contract Owners should discuss the Alliance Money Market Portfolio until your cancellation period has expired. At that time, yourimpact of deducting advisory fees from Contract Value will be allocatedwith their financial intermediaries prior to the investment choices you selected.

The Contract Value is the sum of all Accounts. There are two things that affect your Sub-Account value: (1) the number of Accumulation Units and (2) the Accumulation Unit Value. The Sub-Account value is determined by multiplying the number of Accumulation Units by the Accumulation Unit Value. On any Valuation Day, your Contract Value reflects the investment performance of the Sub-Accounts and will fluctuate withbecause Accumulation Unit Values are affected by the performance of the underlying Funds.Funds and the deduction of expenses and certain charges in the Sub-Account.

When Premium Payments are credited to your Sub-Accounts, they are converted into Accumulation Units by dividing the amount of your Premium Payments, minus any Premium Taxes, by the Accumulation Unit Value for that day. The more Premium Payments you make to your Contract, the more Accumulation Units you will own. You decrease the number of Accumulation Units you have by requesting Surrenders, transferring money out of an Account, settling a Death Benefit claim or by annuitizing your Contract.

To determine the current Accumulation Unit Value, we take the prior Valuation Day's Accumulation Unit Value and multiply it by the Net Investment Factor for the current Valuation Day.

The Net Investment Factor is used to measure the investment performance of a Sub-Account from one Valuation Day to the next. The Net Investment Factor for each Sub-Account equals:

We will send you a statement at least annually, which tells you how many Accumulation Units you have, their value and your total Contract Value.

A Contract's Guarantee Period value is guaranteed by Union Security. We bear the investment risk with respect to amounts allocated to a Guarantee Period, except to the extent that (1) we may vary the guaranteed interest rate for future Guarantee Periods (subject to the 4%3% effective annual minimum) and (2) the MVA imposes investment risks on you. The Contract's Guarantee Period value on any Valuation Date is the sum of its general accountGeneral Account values in each Guarantee Period on that date. The general accountGeneral Account value in a Guarantee Period is equal to the following amounts, in each case increased by accrued interest at the applicable guaranteed interest rate:

•  The amount of Premium Payments or transferred amounts allocated to the Guarantee Period; less

•  The amount of any transfers or Surrenders out of the Guarantee Period.

You may make transfers between the Sub-Accounts offered in this Contract according to our policies and procedures as amended from time to time.

A Sub-Account transfer is a transaction requested by you that involves reallocating part or all of your Contract Value among the Funds available in your Contract. Your transfer request will be processed as of the end of the Valuation Day that it received is in good order. Otherwise, your request will be processed on the following Valuation Day. We will send you a confirmation when we process your transfer. You are responsible for verifying transfer confirmations and promptly advising us of any errors within 30 days of receiving the confirmation.

Many Contract Owners request Sub-Account transfers. Some request transfers into (purchases) a particular Sub-Account, and others request transfers out of (redemptions) a particular Sub-Account. In addition, some Contract Owners allocate new Premium Payments to Sub-Accounts, and others request Surrenders. We combine all the daily requests to transfer out of a Sub-Account along with all Surrenders from that Sub-Account and determine how many shares of that Fund we would need to sell to satisfy all Contract Owners' "transfer-out" requests. At the same time, we also combine all the daily requests to transfer into a particular Sub-Account or new Premium Payments allocated to that Sub-Account and determine how many shares of that Fund we would need to buy to satisfy all Contract Owners' "transfer-in" requests.

In addition, many of the Funds that are available as investment options in our variable annuity products are also available as investment options in variable life insurance policies, retirement plans, funding agreements and other products offered by us or our affiliates. Each day, investors and participants in these other products engage in similar transfer transactions.

We take advantage of our size and available technology to combine sales of a particular Fund for many of the variable annuities, variable life insurance policies, retirement plans, funding agreements or other products offered by us or our affiliates. We also combine many of the purchases of that particular Fund for many of the products we offer. We then "net" these trades by offsetting purchases against redemptions. Netting trades has no impact on the net asset value of the Fund shares that you purchase or sell. This means that we sometimes reallocate shares of a Fund rather than buy new shares or sell shares of the Fund.

For example, if we combine all transfer-out (redemption) requests and Surrenders of a stock Fund Sub-Account with all other sales of that Fund from all our other products, we may have to sell $1 million dollars of that Fund on any particular day. However, if other Contract Owners and the owners of other products offered by us, want to transfer-in (purchase) an amount equal to $300,000 of that same Fund, then we would send a sell order to the Fund for $700,000 (a $1 million sell order minus the purchase order of $300,000) rather than making two or more transactions.

We reserve the right to aggregate your Contracts (whether currently existing or those recently surrendered) for the purposes of enforcing these restrictions.

The Transfer Rule does not apply to Sub-Account transfers that occur automatically as part of a Company-sponsored asset allocation or Dollar Cost Averaging program. Reallocations made based on a Fund merger, substitution or liquidation also do not count toward this transfer limit. Restrictions may vary based on state law.

We make no assurances that the Transfer Rule is or will be effective in detecting or preventing market timing.

Generally, you are subject to Fund trading policies, if any. We are obligated to provide, at the Fund's request, tax identification numbers and other shareholder identifying information contained in our records to assist Funds in identifying any pattern or frequency of Sub-Account transfers that may violate their trading policy. In certain instances, we have agreed to serve as a Fund's agent to help monitor compliance with that Fund's trading policy.

We are obligated to follow each Fund's instructions regarding enforcement of their trading policy. Penalties for violating these policies may include, among other things, temporarily or permanently limiting or banning you from making Sub-Account transfers into a Fund or other funds within that fund complex. We are not authorized to grant exceptions to a Fund's trading policy. Please refer to each Fund's prospectus for more information. Transactions that cannot be processed because of Fund trading policies will be considered not in good order.

In certain circumstances, fundFund trading policies do not apply or may be limited. For instance:

We are not responsible for losses or lost investment opportunities associated with the effectuation of these policies. Frequent Sub-Account transfers may result in the dilution of the value of the outstanding securities issued by a Fund as a result of increased transaction costs and lost investment opportunities typically associated with maintaining greater cash

Separate Account investors could be prevented from purchasing Fund shares if we reach an impasse on the execution of a Fund's trading instructions. In other words, a Fund complex could refuse to allow new purchases of shares by all our variable product investors if the Fund and we cannot reach a mutually acceptable agreement on how to treat an investor who, in a Fund's opinion, has violated the Fund's trading policy.

In some cases, we do not have the tax identification number or other identifying information requested by a Fund in our records. In those cases, we rely on the Contract Owner to provide the information. If the Contract Owner does not provide the information, we may be directed by the Fund to restrict the Contract Owner from further purchases of Fund shares. In those cases, all participants under a plan funded by the Contract will also be precluded from further purchases of Fund shares.

The following charges and fees are associated with the Contract:

For assuming mortality and expense risks under the Contract, we deduct a daily charge at ana maximum annual rate of 0.45%1.10% of Sub-Account Value. The mortality and expense risk charge is broken into charges for mortality risks and for an expense risk:

The Annual Maintenance Fee is a flat fee that is deducted from your Contract Value to reimburse us for expenses relating to the administrative maintenance of the Contract and the Accounts. The annual $30 charge is deducted on a Contract Anniversary or when the Contract is fully Surrendered if the Contract Value at either of those times is less than $50,000.$100,000. The charge is deducted proportionately from each Account in which you are invested.

We will waive the Annual Maintenance Fee if your Contract Value is $50,000$100,000 or more on your Contract Anniversary or when you fully Surrender your Contract. We reserve the right to waive the Annual Maintenance Fee under certain other conditions.

We deduct Premium Taxes, if imposed on us by a state or other government agency. Some states collect the taxes when Premium Payments are made; others collect at Annuitization. Since we pay Premium Taxes when they are required by

The Separate Account purchases shares of the Funds at net asset value. The net asset value of the Fund shares reflects investment advisory fees and administrative expenses already deducted from the assets of the Funds. These charges are described in the Fund'sFund prospectuses.

Requests for full Surrenders must be in writing. Requests for partial Surrenders can be made in writing or by telephone. We will send your money within seven days of receiving complete instructions. However, we may postpone payment of Surrenders whenever: (a) the New York Stock Exchange is closed, (b) trading on the New York Stock Exchange is restricted by the SEC, (c) the SEC permits and orders postponement, or (d) the SEC determines that an emergency exists to restrict valuation.

•  the dollar amount that you want to receive, either before or after we withhold taxes and deduct for any applicable charges,

•  your tax withholding amount or percentage, if any, and

•  your mailing address.

You may submit this form via mail or fax.

If there are joint Contract Owners, both must authorize all Surrenders. For a partial Surrender, specify the Accounts that you want your Surrender to come from, otherwise, the Surrender will be taken in proportion to the value in each Account.

Telephone Surrender instructions received before the close of the New York Stock Exchange will be processed on that Valuation Day. Otherwise, your request will be processed on the next Valuation Day.

There are certain tax consequences associated with Surrenders:

We will no longer accept any incoming 403(b) exchanges or applications for 403(b) individual annuity contracts.

•  When do you want Annuity Payouts to begin?

•  Which Annuity Payout Option do you want to use?

•  How often do you want to receive Annuity Payouts?

•  What is the Assumed Investment Return?

•  Do you want Annuity Payouts to be fixed or variable or a combination?

Please check with your investment professional to select the Annuity Payout Option that best meets your income needs.

Consider the age you will be when you start Annuity Payouts. Annuity Payouts started at a younger age will be greater than at an older age. You select an Annuity Commencement Date when you purchase your Contract or at any time before you begin receiving Annuity Payouts. You may change the Annuity Commencement Date by notifying us within thirty days prior to the date. The Annuity Commencement Date cannot be deferred beyond the Annuitant's 110th birthday unless you elect a later date to

The Annuity Calculation Date is when the amount of your Annuity Payout is determined. This occurs within five Valuation Days before your selected Annuity Commencement Date.

All Annuity Payouts, regardless of frequency, will occur on the same day of the month as the Annuity Commencement Date. After the initial payout, if an Annuity Payout date falls on a Non-Valuation Day, the Annuity Payout is computed on the prior Valuation Day. If the Annuity Payout date does not occur in a given month due to a leap year or months with only 28 days (i.e. the 31st), the Annuity Payout will be computed on the last Valuation Day of the month.

Your Contract contains the Annuity Payout Options described below. The Annuity Proceeds Settlement Option is an option that can be elected by the Beneficiary and is described in the "Death Benefit" section. We may at times offer other Annuity Payout Options. Once we begin to make Annuity Payouts, the Annuity Payout Option cannot be changed.

We make Annuity Payouts as long as the Annuitant is living. When the Annuitant dies, we stop making Annuity Payouts. A Payee would receive only one Annuity Payout if the Annuitant dies after the first payout, two Annuity Payouts if the Annuitant dies after the second payout, and so forth.

We will make Annuity Payouts as long as the Annuitant is living, but we at least guarantee to make Annuity Payouts for a time period you select either 10 or 20 years. If the Annuitant dies before the guaranteed number of years have passed, then the Beneficiary may elect to continue Annuity Payouts for the remainder of the guaranteed number of years. If the Contract is a qualified contract, the annuity payments may need to be modified after the death of the individual or designated beneficiary, as necessary to comply with IRS rules and regulations.

We will make Annuity Payouts as long as the Annuitant and Joint Annuitant are living. When one Annuitant dies, we continue to make Annuity Payouts to the Contract Owner until that second Annuitant dies. Adding a joint life will usually lower the payout amount. At younger ages there is little impact, the impact is greater at older ages.

We may offer other available Annuity Payout Options available.Options.

•  For Qualified Contracts, if you elect an Annuity Payout Option with a Period Certain, the guaranteed number of years must be less than the life expectancy of the Annuitant at the time the Annuity Payouts begin. We compute life expectancy using the IRS mortality tables.

In addition to selecting an Annuity Commencement Date and an Annuity Payout Option, you must also decide how often you want the Payee to receive Annuity Payouts. You may choose to receive Annuity Payouts:

•  monthly,

•  quarterly,

•  semiannually, or

•  annually.

Annual Annuity Payouts are less than 12 times the monthly payout amount due to a modal factor based on the AIR for variable Annuity Payouts or minimum interest rate for fixed Annuity Payouts. Once you select a frequency, it cannot be changed. If you do not make a selection, the Payee will receive monthly Annuity Payouts. You must select a frequency that results in an Annuity Payout of at least $50. If the amount falls below $50, we have the right to change the frequency to bring the Annuity Payout up to at least $50.

The Assumed Investment Return ("AIR") is the investment return before we start to make Annuity Payouts. It is a critical assumption for calculating variable dollar amount Annuity Payouts. The first Annuity Payout will be based upon the AIR. A lower AIR will start with a lower payout amount. The remaining Annuity Payouts will fluctuate based on the performance of the underlying Funds. The AIR for this Contract is 3%.

For example, if the Sub-Accounts earned exactly the same as the AIR, then the second monthly Annuity Payout Option is the same as the first. If the Sub-Accounts earned more than the AIR, then the second monthly Annuity Payout Option is higher than the first. If the Sub-Accounts earned less than the AIR, then the second monthly Annuity Payout Option is lower than the first.

You may choose an Annuity Payout Option with fixed dollar amounts, variable dollar amounts or a combination depending on your income needs. Fixed dollar Annuity Payouts do not change. Variable dollar Annuity Payouts change with every payout. A lower AIR will start with a lower payout amount.

The dollar amount of the first variable Annuity Payout depends on:

•  the Annuity Payout Option chosen,

•  the Annuitant's attained age and gender (if applicable),

•  the applicable annuity purchase rates based on the 1983a Individual Annuity Mortality table and,

•  the Assumed Investment ReturnReturn.

The total amount of the first variable dollar amount Annuity Payout is determined by dividing the Contract Value minus any applicable Premium Taxes, by $1,000 and multiplying the result by the payment factor defined in the Contract for the selected Annuity Payout Option.

The dollar amount of each subsequent variable dollar amount Annuity Payout is equal to the total of •  Annuity Units for each Sub-Account multiplied by Annuity Unit Value for each Sub-Account.

The Annuity Unit Value of each Sub-Account for any Valuation Period is equal to the Accumulation Unit Value Net Investment Factor for the current Valuation Period multiplied by the Annuity Unit Factor, multiplied by the Annuity Unit Value for the preceding Valuation Period. The Annuity Unit Factor for a 3% AIR is 0.999919.

We may discontinue, modify or amend any of these Programs or any other programs we establish. Any changes tochange other than termination of a Program will not affect Contract Owners currently enrolled in the Program. There is no additional charge for these programs. If you are enrolled in any of these programs while a Fundfund merger, substitution or liquidation takes place, unless otherwise noted in any communication from us, your Contract Value invested in such underlying Fund will be transferred automatically to the designated surviving Fund in the case of mergers and any available Money Market Fund in the case of Fund liquidations. Your enrollment instructions will be automatically updated to reflect the surviving Fund or a Money Market Fund for any continued and future investments.

InvestEase®, which was formerly called "PAC," is an electronic transfer program that allows you to have money automatically transferred from your checking or savings account, and invested in your Contract. It is available for Premium Payments made after your initial Premium Payment. The minimum amount for each transfer is $50. You can elect to have transfers occur either monthly or quarterly, and they can be made into any Account available in your Contract.

In asset rebalancing, you select a portfolio of Funds, and we will rebalance your assets at the specified frequency to reflect the original allocation percentages you selected. You can choose how much of your Contract Value you want to invest in this program. You can also combine this program with others such as the Automatic Income Program and Dollar Cost Averaging Program (subject to restrictions). You may designate only one set of asset allocation instructions at a time. Asset Rebalancing is not available for Guarantee Periods.

We currently offer two different types of Dollar Cost Averaging Programs. If you enroll, you may select either the Fixed Amount DCA Program or the Earnings/Interest DCA Program. The Fixed Amount DCA Program allows you to regularly transfer an amount you select from the Fixed Accumulation Feature or any Fund into a different Fund. The Earnings/Interest DCA Program allows you to regularly transfer the interest from the Fixed Accumulation Feature or the earnings from one Fund into a different Fund. For either Program, you may select transfers on a monthly or quarterly basis, but you must at least make three transfers during the Program. The Fixed Amount DCA Program begins at the end of the length of the transfer period you selected plus two business days. That means if you select a monthly transfer, your Earnings/Interest DCA Program will begin one month plus two business days after your enrollment.

A Qualified Contract may not be transferred or otherwise assigned, unless allowed by applicable law.

We may modify the Contract, but no modification will affect the amount or term of any Contract unless a modification is required to conform the Contract to applicable federal or state law. No modification will effect the method by which Contract Values are determined.

Contracts will bewere sold by individuals who have beenwere appointed by us as insurance agents and who arewere investment professionals of broker-dealers that have entered into selling agreements with TDC. We generally bear the expenses of providing services pursuant to Contracts, including the payment of expenses relating to the distribution of prospectuses for sales purposes as well as any advertising or sales literature (provided, however, we may offset some or all of these expenses by, among other things, administrative service fees received from Fund complexes).

Commissions — We pay compensation to broker-dealers, financial institutions and other affiliated broker-dealers ("Financial Intermediaries") for the sale of the Contracts according to selling agreements with Financial Intermediaries. Affiliated broker-dealers also employ wholesalers in the sales process. Wholesalers typically receive commissions based on the type of

We pay an up-front commission of up to 7% of your Contract Value at the time of sale to the Financial Intermediary that your investment professional is associated with. Your investment professional's Financial Intermediary may also receive on-going or trail commissions of generally not more than 1% of your Contract Value. Investment professionals may have multiple options on how they wish to allocate their commissions and/or compensation. Compensation paid to your investment professional may also vary depending on the particular arrangements between your investment professional and their Financial Intermediary. We are not involved in determining your investment professional's compensation. You are

encouraged to ask your investment professional about the basis upon which he or she will be personally compensated for the advice or recommendations provided in connection with this transaction.

Our financial statements of Union Security Insurance Company as of December 31, 2020 and 2019 and for each of the three years in the period ended December 31, 2020are included in Section 12 of this registration statement have been so included in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

As of May 1, 2009 Union Security has relied on the exemption provided by Rule 12h-7 under the Securities Exchange Act of 1934, as amended, and accordingly does not intend to file with the U.S. Securities and Exchange Commission annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, or any other reports under such Act.

We rely heavily on interconnected computer systems and digital data to conduct our annuity products business. Because ourOur business is highly dependent upon the effective operation of our computer systems and those of our business partners ourand service providers. Our business is therefore vulnerable to disruptions from utility outages and susceptible to operational and information security risks resulting from information systems failure (e.g., hardwaresystem failures and software malfunctions), and cyber-attacks.cybersecurity incidents. These risks include, among other things, the theft, misuse, corruption and destruction of electronic data, maintained online or digitally, interference with or denial of service, attacks on systems or websites and other operational disruptiondisruptions that could severely impede our ability to conduct our business and administer the Contract. Financial services companies and their third-party service providers are increasingly the targets of cyber-attacks involving the encryption of data (e.g., ransomware), disruptions in communications (e.g., denial of service), or unauthorized access to or release of personal or confidential information. In 2023, we were notified of a data security incident involving the MOVEit file transfer system used by numerous financial services companies. A third-party vendor uses that software on our behalf to, among other things, identify the deaths of insured persons and annuitants under life insurance policies and annuity contracts. We notified affected customers as required by law, and we continue to assess and investigate the overall impact of the incident. The techniques used to attack systems and networks change frequently, are becoming more sophisticated, and can originate from a wide variety of sources. The use of remote or flexible work arrangements, remote access tools, and mobile technology has expanded potential targets for cyber-attack.

System failures and cybersecurity incidents may adversely affect you and/or your Contract. For instance, a cyber-attack may interfere with our ability to process Contract transactions or calculate Contract values, including Accumulation Unit values, or could result in the release of confidential customer information. Such systems failures and cyber-attacks affecting us, any third-party administrator, the underlying funds, intermediaries and other affiliated or third-party service providers mayevents could also adversely affect us, and your Contract Value. For instance, systems failures and cyber-attacksas they may interfere with our processing of contract transactions, including the processing of orders from our website or with the underlying funds, impact our ability to calculate Accumulation Unit value, cause the release and possible destruction of confidential customer or business information, impede order processing, subject us and/or our service providers and intermediaries toresult in regulatory fines, and financial losses and/or causeand reputational damage. Cybersecurity risksincidents may also impact the issuers of securities in which the underlying funds invest, which may cause the funds underlying your contractContract to lose value. ThereAlthough we take efforts to protect our systems from cybersecurity incidents, there can be no assurance that we or our service providers or the underlying funds or our service providers will be able to avoid lossescybersecurity incidents affecting your contract due to cyber-attacks or information security breachesContract owners in the future.

We are also exposed to risks related to natural and man-made disasters, including public health crises (such as COVID-19), terrorist acts, and other severe events, thatsuch as storms, public health crises, terrorist acts, and military actions, any of which could adversely affect our ability to conduct our business operations. While we have adopted a business continuity plan and have taken precautions, we cannot assure you that suchsevere events will not result in short- or long-term interruptions to our business operations, particularly if such events affect our computer systems or result in a significant number of our employees becoming unavailable. Interruptions to our business operations may interfere withimpair our ability to effectively administer the Contract, including our ability to process orders and calculate Contract Value. Ourvalues. Additionally, our third-party service providers and other third-parties related to our business (such as financial intermediaries or in the case of our variable products, underlying funds) are subject to similar risks, risksrisks. Successful implementation and execution of political instability,their business continuity policies and disruptionsprocedures are largely beyond our control. Disruptions to their business operations may cause interruptions toimpair our own business operations. Even if our employees and the employees of our service providers are able to work remotely, those remote work arrangements could result in our business operations being less efficient than under normal circumstances and could lead to delays in our processing of Contract-related transactions, including orders from Contract owners.