GuardTime Names Raul Vahisalu as General Manager for Estonia Office

TALLINN, ESTONIA and SINGAPORE--(Marketwire - May 19, 2011) - GuardTime (www.guardtime.com), creator of the patented Keyless Signature^™ technology used to provide proof of time, origin, and content for the world's electronic data, today announced it has named Raul Vahisalu as General Manager of GuardTime Estonia. Reporting to CEO Mike Gault, Raul will oversee the development and implementation of GuardTime's services and applications.

"I am excited to be joining GuardTime and I have great respect for GuardTime's best-in-class technology combined with its strong pool of talent," said Vahisalu. "I am looking forward to contributing significantly to serving our clients' needs around the world."

Raul Vahisalu has close to 20 years of experience in the telecom and IT industry in Estonia, managing development and implementation of high-tech concepts and projects. From 1998, he specialized in telecom value-added services development and was the creator of mobile parking, ID card public transport ticketing and mobile positioning services for the largest Estonian mobile operator. Prior to joining GuardTime, he served as a Business Development Lead for Security and M-commerce solutions and worked in Finland, Kazakhstan and Saudi Arabia for four years.

A native of Estonia, Vahisalu received a Master of Business Administration (MBA) degree in Entrepreneurship and Technology Development from Tartu University, and a Master of Social Sciences degree in Information Management from Tallinn University in Estonia.

"We are very pleased to have someone of Raul's caliber join our team as General Manager for GuardTime Estonia," said CEO Mike Gault. "I am confident that his experience and skills will play a vital role for GuardTime as we expand our business and strive to meet the market's demands for data integrity throughout a variety of business operations."

GuardTime's Keyless Signature provides proof of signing authority, time of the signature, and integrity of the data without using keys or secrets. GuardTime's Keyless Signature mathematically proves data integrity requiring only the use of the original data, the Keyless Signature, and an integrity code published in the Financial Times. With these three things, a client can independently prove the integrity of any data signed by GuardTime without having to trust any third party.

About GuardTime
A Red Herring Global 100 Winner and Frost & Sullivan Product Innovation Award Winner, GuardTime was founded with the goal of solving one of the biggest problems in computing: trust. GuardTime's Keyless Signatures provide proof of data integrity, signing authority, and time. The verification of the signature can be done offline without the reliance on keys, secrets, or the existence of a trusted third party. GuardTime's mission is to change the world to one where keyless signatures are ubiquitous and a natural part of the everyday data lifecycle, whether on disk, in transit, or in the cloud.

Visit http://www.guardtime.com for more information about using Keyless Signatures for signing data.