Press Release - July 14, 2005

Lightbridge Successfully Closes Sale of PrePay IN to VeriSign, Inc.

Burlington, MA - July 14, 2005 - Lightbridge, Inc. (NASDAQ: LTBG), a leading e-commerce, analytics and decisioning company today announced it has closed the previously announced sale of its Intelligent Network Solutions (INS) business unit, based in Broomfield, CO, to VeriSign, Inc. (NASDAQ: VRSN), for $17.45 million plus assumption of certain contractual liabilities.

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About Lightbridge
Lightbridge, Inc. (NASDAQ:LTBG) is a leading e-commerce, analytics and decisioning company and IN solutions provider that businesses trust to manage customer transactions. Lightbridge adds value to fraud screening, credit qualification, payment authorization, billing, and enhanced voice and data services. Lightbridge solutions leverage intelligent automated systems and human expertise, delivered primarily through the efficiencies and cost savings of an outsourced business model. Businesses around the world use Lightbridge to make smarter decisions, deliver better services, provide secure payments, reduce costs and enhance the lifetime value of their customers. For more information, visit www.lightbridge.com.

About VeriSign
VeriSign, Inc. (NASDAQ: VRSN), operates intelligent infrastructure services that enable businesses and individuals to find, connect, secure, and transact across today's complex, global networks. Additional news and information about the company is available at www.verisign.com.

Lightbridge Contact:
Lynn Ricci
Director, Investor & Media Relations
781-359-4854
lricci@lightbridge.com

VeriSign Contact:
Leslie Rubin
Media Relations
650.426.5363
lrubin@verisign.com

LIGHTBRIDGE is a registered trademark and the Lightbridge logo, PrePay and PrePay IN are trademarks of Lightbridge, Inc. All other trademarks and registered trademarks are the properties of their respective owners.