Best Buy to Use Tumbleweed Secure Mail to Protect Company-Wide Technology Infrastructure

REDWOOD CITY, CA - March 13, 2002 - Tumbleweed® Communications Corp. (Nasdaq:TMWD), a leading provider of secure content management solutions for enabling the business Internet, today announced that Best Buy Co., Inc. (NYSE: BBY), North America's number one specialty retailer of consumer electronics, personal computers, entertainment software and appliances, has implemented the Tumbleweed Secure Mail solution for email content filtering.

Secure Mail's proactive approach protects Best Buy's company-wide technology infrastructure from a centralized point. With Secure Mail's intuitive interface, Best Buy was able to quickly set up tailored and complex policies to block unwanted messages, viruses and malicious mobile code found in email and email attachments. Policies are applied at the perimeter to all email traffic flow, thus protecting the entire IT organization.

"Online communications are important for efficient day-to-day business operations," said David Kaercher, IS Director for Best Buy. "Tumbleweed's Secure Mail solution met our requirements for a solid email content filtering solution."

Secure Mail is a solution that helps companies centrally manage whether, when and how business-critical information through Internet email is delivered and stored. Companies can protect their enterprise networks, as well as their information assets through the protection modules included in the solution. The integrated modules provide content filtering, access control, attachment management, and virus protection.

Best Buy Co., Inc.
Minneapolis-based Best Buy Co., Inc. (NYSE: BBY) is North America's number one specialty retailer of consumer electronics, personal computers, entertainment software and appliances. The Company operates retail stores and commercial web sites under the names: Best Buy (BestBuy.com), Future Shop (FutureShop.ca); Magnolia Hi-Fi (MagnoliaHiFi.com), Media Play (MediaPlay.com), On Cue (OnCue.com), Sam Goody (SamGoody.com), and Suncoast (Suncoast.com). The Company reaches consumers through more than 1,800 retail stores in the U.S., Canada, Puerto Rico and the U.S. Virgin Islands.

About Tumbleweed
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.