Leading Technology Companies Rely on Tumbleweed Solutions for Secure Content Management

Tumbleweed announces technology and telecommunications customers that benefit from Tumbleweed Secure Guardian

REDWOOD CITY, CA - (BUSINESS WIRE) - December 19, 2001 - Tumbleweed Secure Guardian is the first enterprise-wide policy-based security framework that provides centralized security for both incoming and outgoing email and web-based content. Secure Guardian integrates with various enterprise applications for safe online delivery of all forms of content and documents to partners and customers. Tumbleweed offers various solutions that protect the network, as well as extend secure online communications outside of the network, including Secure Mail, Secure Messenger, Secure Public Network, Secure Redirect, and Secure Web.

"We are pleased that leading technology and telecommunications companies are choosing Tumbleweed solutions to proactively protect and secure their enterprise networks and their intellectual properties," said Bill Pollak, Senior Vice President, Sales at Tumbleweed. "As technology innovators, our customers know that email and online channels are increasingly used to communicate business-critical information with customers and partners and they recognize that the security of those communications is vital to their businesses."

About Tumbleweed Communications Corp.
Tumbleweed is a leading provider of solutions for managing secure communication and collaboration to enable the business Internet. Tumbleweed's robust policy-based framework empowers organizations to safely share and protect critical information, increase customer loyalty and privacy and dramatically reduce costs. Tumbleweed is trusted by 1,000 blue-chip customers including American Express, Chevron, Datek Online, the European Union's Joint Research Council, First Union Wachovia, John Deere, Merrill Lynch, Nike, Northern Trust, NTT, Salomon Smith Barney, Travelers and US Food and Drug Administration. One hundred of the Fortune 500 are Tumbleweed customers. Tumbleweed Communications was founded in 1993 and is headquartered in Redwood City, Calif., with offices around the world.

Except for the historical information contained herein, the matters discussed in this press release may constitute forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those projected, particularly with respect to the security features of Tumbleweed's products and the activities of any third party. In some cases, forward-looking statements can be identified by terminology such as "may," "will," "should," "potential," "continue," "expects," "anticipates," "intends," "plans," "believes," "estimates," and similar expressions. For further cautions about the risks of investing in Tumbleweed, we refer you to the documents Tumbleweed files from time to time with the Securities and Exchange Commission, particularly Tumbleweed's Form 10-K filed March 30, 2001 and Form 10-Q filed November 13, 2001. Tumbleweed assumes no obligation to update information contained in this press release.

For further info on TELUS, contact Doug Strachan, TELUS Media relations at 604-432-3851, doug.strachan@telus.com.