BroadVision and Tumbleweed Announce Strategic Alliance

Companies to integrate and jointly sell Tumbleweed IME and BroadVision One-To-One

REDWOOD CITY, CA - June 13, 2000 - Tumbleweed® Communications Corp. (Nasdaq:TMWD), a leading provider of advanced email solutions for business communications, today announced that Tumbleweed and BroadVision, Inc. (Nasdaq: BVSN), a leading worldwide supplier of personalized e-business applications, have entered into an alliance to integrate Tumbleweed Integrated Messaging ExchangeT (IMET) and BroadVision. One-To-OneT. The companies will also jointly market and sell the integrated solutions.

Tumbleweed IME is a platform and set of applications for creating secure email channels between a business and its customers, partners, and suppliers. BroadVision One-To-One applications power business-to-consumer and business-to-business sites for many of the world's top companies in the financial services, telecommunications, manufacturing, retail and travel industries. Tumbleweed and BroadVision will first focus on the financial services industries, where the combination of BroadVision's e-business applications and Tumbleweed's communications platforms will provide an end-to-end solution for deploying financial services e-businesses.

"We are always looking at integrating key technologies with BroadVision One-To-One applications," said Dr. Pehong Chen, chairman, president, and CEO of BroadVision, Inc. "The alliance with Tumbleweed brings together two key areas of focus for us-customer communications and security. We are very pleased to be able to offer this innovative solution to our customers."

"With this alliance BroadVision and Tumbleweed will offer our customers a comprehensive web deployment solution that integrates the industry's most feature-rich e-business applications, with a comprehensive secure communications platform - Tumbleweed IME," said Jeffrey C. Smith, president and CEO, Tumbleweed Communications Corp. "Our products deliver complementary capabilities to our customers, and we've already achieved valuable synergies for customers we have in common. With the combined solution - BroadVision's e-business applications and Tumbleweed's email platform - our customers will be prepared to build and maintain strong customer communication online."

About BroadVision
BroadVision, Inc. (Nasdaq: BVSN, Neuer Markt: BDN) is the leader in personalized e-business applications. BroadVision's comprehensive suite of integrated applications is built for delivery via the Web and wireless devices. Companies using BroadVision's proven applications get to market quickly, launching innovative e-commerce, self-service and enterprise information sites. These sites enable personalized interactions and transactions with customers, partners, suppliers and employees. BroadVision One-To-OneT applications power business-to-consumer and business-to-business sites for many of the world's top companies in the financial services, telecommunications, electronics, manufacturing, retail and travel industries. BroadVision applications are available in more than 120 countries worldwide. Headquartered in Redwood City, Calif., USA, the company can be reached at (650) 261-5100 or at www.broadvision.com.

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.