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NetScreen First to Achieve EAL4+ Certification Using Stringent NSA Developed Protection Profile Across Majority of Product Line

Sunnyvale, CA - March 3, 2004 - NetScreen Technologies, Inc. (Nasdaq: NSCN) today announced that the majority of its integrated firewall and virtual private network (VPN) appliances and systems have achieved the Common Criteria EAL4+ certification using a stringent U.S. government firewall protection profile. The NetScreen-5XP, -5XT, -25, -50, -204, -208 appliances and the NetScreen-500 system now join the NetScreen-5200 security system, which was the first firewall platform to receive the same EAL4+ certification last year.

These NetScreen appliances and systems have received Common Criteria EAL4+ certification using the U.S. Government Traffic-Filter Firewall Protection Profile for Medium Robustness Environments, version 1.4. To be certified with the medium robustness protection profile, the National Security Agency (NSA) performed vulnerability and penetration testing on the products in conjunction with source code analysis, verifying they meet a specific set of stringent security requirements.

The NSA has developed the protection profiles for firewall products and mandates that the Department of Defense networks use firewall products certified against these protection profiles, when there are certified products available. The NetScreen-5XP, -5XT, -25, -50, -204, -208 appliances and the NetScreen-500, -5200 systems running ScreenOS 4.0.2 r7 are the first products to be certified for government networks requiring the medium robustness protection profile.

“NetScreen is the first vendor to achieve the EAL4+ certification with medium robustness protection profile across the majority of its firewall products,” said David Flynn, vice president of marketing at NetScreen. “With this certification, our government customers are able to deploy across their network certified security solutions that meet varied requirements.”

For more information about NetScreen’s Common Criteria certifications, visit:

About NetScreen Technologies

NetScreen Technologies, Inc. is a leading developer of network security and access solutions for enterprises and carriers worldwide. NetScreen’s solutions offer multiple layers of network and application-level protection in purpose-built appliances and systems that meet customers’ security, performance and total cost of ownership objectives. NetScreen is located at 805 11th Ave., Sunnyvale, CA, 94089. More information on NetScreen’s products can be found at http://www.netscreen.com or by calling toll free at 1-800-638-8296.

NetScreen and the NetScreen logo are trademarks of NetScreen Technologies, Inc. in the United States and other countries. Other trademarks are the property of their respective owners.

This press release contains forward-looking statements about events and circumstances that have not yet occurred. For example, words such as “will”, “can”, “provides”, “enabling”, “designed”, “allows” and “continues”, or other statements in the future tense, are forward-looking statements. Actual outcomes and results may differ materially from expectations in this press release due to a number of risks and uncertainties. Such risks and uncertainties include whether the market for security products will grow as projected, if at all, whether demand for NetScreen products will continue, whether new products if and when introduced, will be successful and whether products will perform as expected.