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Verisign Announces Participation in World IPv6 Day

March 18, 2011
Verisign Announces Participation in World IPv6 Day DULLES, VA (Marketwire) - VeriSign, Inc. (NASDAQ: VRSN), the trusted provider of Internet infrastructure services for the networked world, today announced the company will participate in the Internet Society's World IPv6 Day, a 24-hour global "test drive" of IPv6 on June 8, 2011.

Joining the likes of Cisco, Google, Yahoo, and other industry leaders, Verisign will enable global IPv6 connectivity to its corporate website, www.verisigninc.com, on June 8 and thereafter, so that anyone with IPv6 Internet capabilities will be able to access the site. IPv4 traffic access to the site will be unchanged.

"Verisign is committed to ensuring that the critical Internet infrastructure under our stewardship is fully prepared for rapid, wide-scale IPv6 adoption," said Danny McPherson, CSO of Verisign. "To this end, we are very pleased to join the many Web companies, Internet Service Providers and enterprises participating in World IPv6 Day to help ensure a successful transition from IPv4 to IPv6. Working together, we can make 2011 an historic year for ensuring the stability, security and growth of the Internet."

Verisign has been capable of servicing IPv6 queries at the network layer, and supporting IPv6 extensions in the Domain Name System (DNS) itself, for several years. The company is committed to continually expanding its infrastructure to accommodate new capabilities and exceed global demand, including all aspects of full feature and capability parity with IPv4, and an expected co-existence with IPv4 and IPv6 into the foreseeable future.

"We are eager to learn from the knowledge yet to be realized with broader IPv6 adoption, and will continue to share our own experiences with other infrastructure operators and Internet stakeholders as they ready their networks for IPv6," said McPherson.

About IPv6
IPv6 is the next generation Internet Protocol address standard intended to supplement, and eventually replace, the IPv4 protocol most Internet services use to transact on the Internet today. IPv6 preparedness is increasingly urgent as the Internet Assigned Numbers Authority (IANA) pool for available IPv4 addresses is already exhausted, and IPv4 exhaustion at several of the Regional Internet Registries (RIRs) is anticipated throughout 2011.

IP addresses are associated with an ever-increasing array of networked devices, and are required to uniquely identify, locate, and transact on the Internet. With a 32-bit IPv4 address space, the number of total IP addresses is limited to approximately 4.3 billion, a number that seemed more than sufficient at the time that IPv4 was developed in the early 1980s. But in a world with well over a billion Internet users and literally billions of Internet-connected devices, the available IPv4 address space has proved to be insufficient.

IPv6 solves this address scarcity problem by using 128-bit addressing, creating a massively larger number of addresses (the actual number is typically described as 2 to the 128th power -- or '340 trillion trillion trillion' -- widely believed to be more than the Internet will need for decades). While the technical foundations of IPv6 are well established in the Internet standards development community, significant work remains to deploy and begin using IPv6 capabilities, continually refining interworking and transitional co-existence with IPv4, and providing a platform for continued growth and innovation on the Internet.

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 to connect online with confidence. Additional news and information about the company is available at www.verisigninc.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 increasing competition, pricing pressure from competing services offered at prices below our prices and changes in marketing practices including those of third-party registrars; the sluggish economic recovery; challenges to ongoing privatization of Internet administration; the outcome of legal or other challenges resulting from our activities or the activities of registrars or registrants; new or existing governmental laws and regulations; changes in customer behavior, Internet platforms and web-browsing patterns; the inability of Verisign to successfully develop and market new services; the uncertainty of whether our new services will achieve market acceptance or result in any revenues; system interruptions; security breaches; attacks on the Internet by hackers, viruses, or intentional acts of vandalism; the uncertainty of the expense and duration of transition services and requests for indemnification relating to completed divestitures; and the uncertainty of whether Project Apollo will achieve its stated objectives. 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, 2010, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K. Verisign undertakes no obligation to update any of the forward-looking statements after the date of this announcement.

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