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TELUS Selects NetScreen Security Solutions for New Managed Wireless LAN Offering

Sunnyvale, CA - July 21, 2003 - NetScreen Technologies, Inc. (Nasdaq: NSCN) today announced that TELUS, one of Canada’s leading providers of data, Internet Protocol (IP), voice and wireless communications services, has selected NetScreen security solutions to provide firewall and virtual private network (VPN) functionality for its newly announced managed wireless local area network (WLAN) offering.

TELUS’ new Managed WLAN offering - part of the TELUS Managed WorkPlace solutions suite - is designed to provide mobile workers secure, reliable access to corporate data, email, Intranets and each other without being physically connected. The new service offering includes firewall, VPN, bandwidth management and virus protection services. To cost-effectively provide its customers the firewall and VPN functionality, TELUS leverages NetScreen-5XT and NetScreen-25 appliances, as well as the NetScreen Global PRO management platform.

NetScreen-5XT and NetScreen-25 integrated firewall and VPN appliances, ideally suited for telecommuters and remote offices, respectively, with easy deployment and management features and enterprise-class firewall protection and VPN functionality, are deployed in multiple TELUS customer sites throughout Canada. NetScreen Global PRO simplifies the configuration and management of NetScreen’s integrated security devices and VPN clients, giving network managers the ability to quickly and efficiently set policies for groups of security devices and/or distinct customers and monitor networks for operational and security benefits enterprise wide.

“In addition to providing excellent security functionality, NetScreen solutions offer numerous deployment, management and resiliency features that can help increase our productivity and minimize total cost of ownership,” said Michael Gelinas, vice president, TELUS Managed Infrastructure Solutions. “This allows us to operate highly effective, reliable and reasonably priced security services for our customers while maintaining a business advantage.”

“As a telecommunications leader in Canada, TELUS recognizes the importance of leveraging proven security technologies to protect its WLAN users’ and their critical resources,” said David Flynn, NetScreen vice president of marketing. “TELUS’ selection of NetScreen’s appliances, which offer advanced firewall protection and encryption features ideal for protecting a WLAN environment, demonstrates the capability and flexibility of NetScreen’s solutions to meet the needs of today’s security conscious customers and successfully address new application segment security concerns.”

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TELUS (TSX: T, T.A; NYSE: TU) is the largest telecommunications company in Western Canada and the second largest in the country, with more than 25,000 employees. The company provides subscribers with a full range of telecommunications products and services including data, Internet Protocol, voice and TELUS Mobility wireless services across Canada. TELUS is a premier founding supporter of Canada’s successful bid to host the 2010 Winter Games. For more information about TELUS, please visit telus.com.

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.

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.