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NEC to Offer NetScreen Solutions in Japan

Sunnyvale, CA - August 5, 2003 - NetScreen Technologies, Inc. (Nasdaq: NSCN), today announced that it has signed an agreement with a distributor that will enable NEC Corporation (NEC) to offer co-branded NetScreen products to meet the demand for scalable, high performance security solutions in Japan.

NEC, based in Tokyo, Japan, and a leading provider of solutions for enterprises and service providers, will offer NetScreen’s integrated firewall and virtual private network (VPN) solutions designed to protect backbone, perimeter and remote network environments.

According to Infonetics Research, total revenue in the Asia Pacific firewall and virtual private network (VPN) appliance hardware and software market is forecasted to achieve a compound annual growth rate (CAGR) of 22 percent from 2002 to 2006*. This agreement positively positions NEC to address enterprise and carrier demand for appliance-based security solutions in Japan and provides NetScreen another avenue in which to offer its solutions.

NetScreen-5XT, -25, -50, -204, -208, -500, -5000 and NetScreen-Remote are now available for order by Japanese customers through NEC. NetScreen-Global PRO will be available as a system component during the course of integration.

“Working with NEC reflects our strong commitment to the Japanese market, which has been an important focus of NetScreen’s since the company was formed,” said Hansen Chang, vice president of sales for NetScreen in the APAC region. “Not only does this agreement allow us to expand our presence, NEC’s world-class integration and support capabilities can help us address the needs of some of the largest and most demanding customers in Japan.”

About NetScreen Technologies

NetScreen Technologies, Inc., is a leading developer of integrated network security solutions that offer the security, performance and total cost of ownership required by enterprises and carriers. NetScreen’s innovative solutions provide key security technologies, such as virtual private network, denial of service protection, firewall and intrusion prevention, in a line of easy-to-manage security appliances and systems. 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.

* Infonetics Q1 2003 Firewall and VPN Market Share Report

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”, “provide”, “enabling” and “continue”, 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.