Busch Consulting Joins Tumbleweed Channel Alliance Program

Busch Consulting to Offer Customers Tumbleweed's Leading Secure Content Management Solutions

Honolulu, HI - December 5, 2001 - Busch Consulting, a leading IT professional services firm specializing in providing consulting services and implementing messaging and security solutions, announced today that it has joined the Tumbleweed Channel Alliance Program. Tumbleweed® Communications Corp. (NASDAQ:TMWD) is a leading provider of secure content management solutions for enabling the business Internet. As a new Tumbleweed Channel Alliance Partner, Busch Consulting will offer its customers products from Tumbleweed's family of secure content management solutions.

"We are seeing an increasing threat to network security and business communications from email and Web usage," said Matthias Busch, President of Busch Consulting. "Our agreement with Tumbleweed allows us to address this threat and expand on our promise of delivering information security solutions to our clients. Busch delivers both point and fully managed solutions for email management using Tumbleweed products to complement our experience."

Busch offers a full range of networking products and services for small to large enterprise customers across a number of vertical industries. As a Tumbleweed Channel Alliance Partner, Busch will offer customers the full range of Tumbleweed software products. Tumbleweed software gives businesses a centralized security and policy framework to manage information flow leaving and entering the enterprise. Using Tumbleweed, enterprises can manage all of their security applications, protect their internal networks, and manage and secure web content and email communications. Enterprises can use Tumbleweed solutions to extend communications beyond their networks and deliver and exchange content with customers, partners and suppliers using a secure, reliable and auditable platform. Since Tumbleweed solutions are application-independent, they can integrate easily with existing infrastructure to enable customers to consolidate and universally apply two-way security policies across their entire enterprise.

"Busch has built a strong reputation on meeting the networking and security infrastructure needs of its customers and we are pleased that they have chosen to become a Channel Alliance partner," said Burton Bucher, Channel Sales Manager, Western Region at Tumbleweed.

About Busch Consulting
Busch Consulting specializes in providing consulting services and implementing security and messaging solutions. Busch has a number of strategic partnerships, and is a Cisco Premier Reseller, Compaq Business Partner, Citrix Silver Patner, Microsoft Certified Solution Partner, IBM Partner and Novell Gold Partner (since 1991).

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, JP Morgan Chase & Co., Chevron, Datek Online, the European Union's Joint Research Council, US Food and Drug Administration, John Deere, Merrill Lynch, Nike, Northern Trust, NTT, Salomon Smith Barney, Travelers, United Parcel Service, and seven of the world's largest postal services. Eight of the Fortune 10 and 100 of the Fortune 500 are Tumbleweed customers. Tumbleweed Communications was founded in 1993 and is headquartered in Redwood City, CA 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.