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ManagedStorage International Protects Customers Critical Data with NetScreen

Sunnyvale, CA - August 12, 2003 - NetScreen Technologies, Inc. (Nasdaq: NSCN) today announced that ManagedStorage International (MSI) has selected NetScreen’s security solutions to secure back-up data and resources for its RemoteStor service customers.

MSI’s RemoteStor service is a data protection solution where customers utilize virtual private network (VPN) connections for backing up and enhancing their disaster recovery capabilities at secure off-site facilities. As the company’s RemoteStor volume increased, MSI searched for another VPN solution to enhance the performance and throughput of data across the network.

After a thorough evaluation, MSI selected and installed at its data centers NetScreen-204 appliances, which offer 400 Mbps of firewall performance and 200 3DES IPSec VPN performance with support for up to 128,000 sessions, to serve as VPN concentrators and effectively secure critical customer data resources and create secure encrypted transmission tunnels from the end customer site to the company’s data centers. Because NetScreen’s appliances are built on IPSec VPN industry standards, they are interoperable with other IPSec VPN products. As a result, MSI can take advantage of the robust security and VPN functionality provided in the NetScreen-204 appliances while maintaining its current investment in IPSec VPN technology.

However, for those customers that do not have a current VPN solution and/or wish to upgrade to NetScreen devices, MSI will offer NetScreen-5XPs, which provide up to 20 Mbps firewall and 13 Mbps of 3DES VPN performance with support for 2,000 concurrent sessions and 10 VPN tunnels, to facilitate secure, high-performance VPN connections to MSI’s data centers.

“As our customer base grew and storage needs increased, it became apparent that we needed a cost-effective, integrated firewall and VPN solution,” said Dave Osekavage, director of product marketing at MSI. “The NetScreen solution is giving us the performance and functionality needed by our customers while helping enable us to maintain a cost model that gives us a clear business advantage.”

For more information about NetScreen products, visit: http://www.netscreen.com/products/index.jsp

About ManagedStorage International

MSI is a provider of outsourced data protection and storage management services to enterprise and service provider customers in the US, UK, France, and Japan. MSI uses its proprietary GridWorks management system to deliver guaranteed data management and data protection services across all types of storage systems both onsite and remotely. The company was formed in March 2000 and is privately held. MSI is headquartered in Broomfield, Colorado.

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, Calif., 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.