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VeriSign Exceeds 2 Billion Certificate Checks in a Single Day

MOUNTAIN VIEW, CA (Marketwire) - VeriSign, Inc. (NASDAQ: VRSN), the trusted provider of Internet infrastructure services for the networked world, today reported it surpassed 2 billion Online Certificate Status Protocol (OCSP) checks in a single day. The milestone, which was reached on Monday, April 12, represents an average of 23,000 online validations a second.

Passing the 2 billion OCSP check benchmark also highlights VeriSign's ability to keep pace with the demands of the Internet. In July of 2009, VeriSign announced it had surpassed 1 billion OCSP checks in a day. In less than a year, the volume of certificate checks handled by VeriSign has doubled.

A key link in the online security chain, OCSP offers the most timely and efficient way for Web browsers to determine whether a Secure Sockets Layer (SSL) or user certificate is still valid or has been revoked. Generally, when a browser initiates an SSL session, OCSP servers receive a query to check to see if the certificate in use is valid. Likewise, when a user initiates actions such as smartcard logon, VPN access or Web authentication, OCSP servers check the validity of the user certificate that is presented. OCSP servers are operated by Certificate Authorities, and VeriSign is the world's leading Certificate Authority.

"The ability to support this level of volume requires constant investment in a world-class infrastructure and a strong commitment to best practices," said Tim Callan, vice president of product marketing at VeriSign. "As such, VeriSign continues to be uniquely positioned to enable secure transactions well beyond the 2 billion milestone."

As the most respected and trusted SSL authority on the Web, VeriSign is the EV SSL Certificate provider of choice of 17,000 online businesses. In fact, 93 percent of the Fortune 500 and 97 of the world's 100 largest SSL-using banks secure their sites with SSL Certificates sold by VeriSign and its subsidiaries. To learn more about VeriSign EV SSL, visit http://www.verisign.com/EV-SSL.

About VeriSign
VeriSign, Inc. (NASDAQ: VRSN) is the trusted provider of Internet infrastructure services for the networked world. Billions of times each day, VeriSign helps companies and consumers all over the world engage in communications and commerce with confidence. Additional news and information about the company is available at www.verisign.com.

Statements in this announcement other than historical data and information constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements involve risks and uncertainties that could cause VeriSign's actual results to differ materially from those stated or implied by such forward-looking statements. The potential risks and uncertainties include, among others, the uncertainty of future revenue and profitability and potential fluctuations in quarterly operating results due to such factors as the inability of VeriSign to successfully develop and market new products and services and customer acceptance of any new or current products or services, including VeriSign EV SSL Certificates; the possibility that VeriSign's announced new or current services may not result in additional customers, profits or revenues; and increased competition and pricing pressures. More information about potential factors that could affect the company's business and financial results is included in VeriSign's filings with the Securities and Exchange Commission, including in the company's Annual Report on Form 10-K for the year ended December 31, 2009 and quarterly reports on Form 10-Q. VeriSign undertakes no obligation to update any of the forward-looking statements after the date of this press release.

©2010 VeriSign, Inc. All rights reserved. VeriSign, the VeriSign logo, the Checkmark Circle logo, and other trademarks, service marks, and designs are registered or unregistered trademarks of VeriSign, Inc., and its subsidiaries in the United States and in foreign countries. All other trademarks are property of their respective owners.

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