VeriSign (VRSN)

3.25% Junior Convertible Subordinated Debentures due 2037

VeriSign, Inc., a corporation duly organized and validly existing under the laws of the State of Delaware (herein called the “Company”), which term includes any successor corporation under the Indenture referred to on the reverse hereof), for value received hereby promises to pay to Cede & Co., or registered assigns, the principal sum of                      ($            ) (which amount may from time to time be increased or decreased by adjustments made on the records of the Trustee, as custodian for the Depositary, in accordance with the rules and procedures of the Depositary) on August 15, 2037. The Principal Amount of this Security shall be payable at the Corporate Trust Office and at any other office or agency maintained for such purpose and at any other office or agency maintained by the Company for such purpose. Interest on this Security will be payable (i) to Holders having an aggregate Principal Amount of $5,000,000 or less of Securities, by check mailed to such Holders and (ii) to Holders having an aggregate Principal Amount of more than $5,000,000 of Securities, either by check mailed to such Holders or, upon application by a Holder to the Security Registrar not later than the relevant Record Date for such Interest payment, by wire transfer in immediately available funds to such Holder’s account within the United States.

The issue date of this Security is August 20, 2007.

Reference is made to the further provisions of this Security set forth on the reverse hereof, including, without limitation, provisions giving the Company the right to redeem this Security under certain circumstances and provisions giving the Holder the right to convert this Security into Common Stock of the Company and to require the Company to repurchase this Security upon certain events, in each case, on the terms and subject to the limitations referred to on the reverse hereof and as more fully specified in the Indenture. Such further provisions shall for all purposes have the same effect as though fully set forth at this place. Capitalized terms used but not defined herein shall have such meanings as are ascribed to such terms in the Indenture.

This Security shall be deemed to be a contract made under the laws of the State of New York, and for all purposes shall be construed in accordance with and governed by the laws of said State.

This Security shall not be valid or become obligatory for any purpose until the certificate of authentication hereon shall have been manually signed by the Trustee or a duly authorized authenticating agent under the Indenture.

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IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

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Section 2.03. Form of Reverse of Security.