COUNTERPANE INTERNET SECURITY, INC. AND OPEN COMMUNICATIONS SECURITY, INC. ANNOUNCE THEIR AGREEMENT TO OFFER MANAGED SECURITY MONITORING (MSM) SERVICES IN THE LATIN AMERICA MARKETPLACE

This new relationship enhances Open Communications full complement of corporate information security services

CUPERTINO, Calif., March 19, 2002 - Counterpane Internet Security, Inc., developer and leading provider of Managed Security Monitoring (MSM) and Open Communications Security, Inc., the leading Brazilian-based information security provider, today announced they have pooled their expertise to offer Counterpane's 24/7 MSM service with Open Communications Security's consulting, development, and product solutions, making the most complete range of corporate security services available in Latin America.

"As we expand the geographic reach for our MSM services, we are pleased to be teaming with Open Communications Security in the Latin American market," said John Bruce, Executive Vice President for Counterpane Internet Security, Inc. "Open Communications Security understands the critical security requirements of their corporate clients. Their robust offering of consulting, security services, and customized product development with our MSM service, is a perfect pairing of our respective expertise and strengths."

"We recognize the synergy of our world-class products and consulting combined with Counterpane's 24/7 network security monitoring service," said Carlos Alberto Barros Costa, Executive Director for Open Communications Security. "We are the first and only company in Brazil to offer such a capability today. We will be working closely with Counterpane's technical team to offer rapid detection and response to threats to our customer's enterprise network security."

About Counterpane
Counterpane Internet Security, Inc. is the innovator and acknowledged leader in providing Managed Security Monitoring (MSM) services. MSM combines people and technology to safeguard businesses. Working from a network of technically sophisticated Secure Operations Centers (SOCs) and using progressive analysis tools, Counterpane has built the most advanced analysis, correlation, detection, and diagnosis technology, comprising a Sentry monitoring probe on the customer's network and the Socrates knowledge base inside the SOCs. Using this technology, Counterpane's expert Security Analysts are able to detect security incidents -- both external intrusions and insider attacks -- in real time, and tailor immediate, effective responses for its customers. The company is funded by Accel Partners, Amerindo Investment Advisors, Inc., Bessemer Venture Partners, Dell, Deutsche Bank, Goldman Sachs, and Morgan Stanley Dean Witter Equity Fund. Headquarters are located at 1090 La Avenida, Mountain View, California, USA. Phone: 650-404-2400, Fax: 650-903-0461, Website: www.counterpane.com.

About Open Communications Security

OPEN COMMUNICATIONS SECURITY, Inc. is one of the leading security solution companies in Brazil. OPEN works on all levels of the security cycle, from security analysis, to development, including the definition and implementation. OPEN has an exclusive team of highly qualified security engineers and specialists. Concerned about being updated with the solutions offered, OPEN has a Research and Development Laboratory (RDL) that works on new technology. The laboratory is managed by the Security Engineering department together with the most recognized universities and research institutions in Brazil, including USP and Unicamp. The permanent innovation, evolution and technical capacity of its professionals guarantee a high quality and constant updating of OPEN solutions. The main areas of concentration are Consulting and Auditing, Engineering, Development and Quality & Assurance. Headquarters located at 550 Eng. Luis Carlos Berrini av., suite 111, São Paulo/SP, Brazil and another office in the middle of the country . Phone: +55 11 3345-2525, Fax: +55 11 33452526, Website: www.opencs.com.br.

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Counterpane is a trademark of Counterpane Internet Security, Inc. All other companies, brand names or products are trademarks or registered trademarks of their respective companies.