CacheFlow Security Gateway Operating System 5.0 Named Winner in Network Computing's Prestigious 2002 Well-Connected Award

Business Wire, May 8, 2002

Business Editors/High-Tech Writers

NetWorld Interop 2002 Las Vegas

Booth #2228

LAS VEGAS--(BUSINESS WIRE)--May 8, 2002

First place award in Content Delivery Category

follows "hands-on" evaluation

CacheFlow(R) Inc. (Nasdaq:CFLO), a leading provider of secure content networking solutions, today announced that CMP Media LLC's Network Computing has selected CacheOS(TM) 5.0, an integral component of the CacheFlow Security Gateway 600/6000 series appliances, as winner in the 8th Annual Well-Connected Awards.

CacheFlow Security Gateway appliances allow organizations to protect, control and accelerate web information. The product provides customers with content-level security and powerful, policy-based control capabilities for Web security applications such as Internet authorization management, content filtering, web usage monitoring, virus scanning, active content security, and network bandwidth protection. The CacheFlow Security Gateway easily integrates with existing firewalls and network infrastructure enabling businesses to minimize security risks and reduce the management costs and complexity of enterprise Web infrastructure.

The winners of the Network Computing Well-Connected Awards were announced at a ceremony on Monday, May 6 held at the Bellagio in Las Vegas, Nevada. All winners and finalists are highlighted in the May 13th issue of Network Computing, Network Computing Online at http//www.networkcomputing.com and also on http://www.nwcwellconnected.com .Network Computing's Well-Connected product winners are chosen from products, technologies and services where the editors performed hands-on evaluations to choose its winners. Winners are products that editors believe to be the very best in the industry.

"The Well-Connected Awards are given to products, technologies and services that have withstood testing by our editors over an enterprise and in real world environments -- they have proven to be essential to meeting business initiatives," said Fritz Nelson, Publisher of CMP's Network Computing. According to Nelson, "When a product receives a Well-Connected award, it is an important endorsement -- it is the top in its category and carries through with its promise of excellence."

CacheFlow was selected winner in Core Area: Digital Convergence; Award Category: Content Delivery Device; Product: CacheOS 5.0, part of the CacheFlow Security Gateway 600/6000 series. CacheFlow will showcase the CacheFlow Security Gateway along with its entire line of secure content networking solutions at NetWorld Interop Las Vegas, May 7-9, booth # 2228, North Hall.

About Network Computing

Network Computing (http://www.networkcomputing.com) is published by CMP Media LLC, Manhasset, N.Y. From emerging companies to service providers, Network Computing defines the core issues facing people who manage technology in business -- analyzing the critical decision points in purchasing the products, technologies and services that achieve corporate initiatives. Twice a month 220,000 IT professionals turn to Network Computing to get the information they need to make the right purchase decisions.

About CMP Media LLC

CMP Media LLC (http://www.cmpnet.com) is a leading high-tech media company providing essential information and marketing services to the entire technology spectrum -- the builders, sellers and users of technology worldwide. Capitalizing on its editorial strength, CMP is uniquely positioned to offer marketers' comprehensive, integrated media solutions tailored to meet their individual needs. Its diverse products and services include newspapers, magazines, Internet products, research, direct marketing services, education and training, trade shows and conferences, custom publishing, testing and consulting.

About CacheFlow

CacheFlow develops and markets secure content networking appliances designed to protect, control and accelerate business communications. CacheFlow's family of optimized appliances and its innovative suite of content control technologies enable organizations to ensure web security and conduct e-business. Based in Sunnyvale, California, with offices and partners worldwide, CacheFlow can be contacted via telephone at 408/220-2200, fax at 408/220-2250 or email at info@cacheflow.com More information on CacheFlow products and services can also be found at http://www.cacheflow.com

CacheFlow Inc. Forward-Looking Statements

The statements contained in this press release that are not purely historical are forward-looking statements, including statements regarding the Company's future product deliveries, and future operating results as well as statements regarding CacheFlow's expectations, beliefs, intentions or strategies regarding the future. All forward-looking statements included in this press release are based upon information available to CacheFlow as of the date hereof, and CacheFlow assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected. These risks include the inability to deliver planned future products, and additional risks relating to CacheFlow's business as set forth in CacheFlow's most recently filed Form 10-Q for the quarter ended January 31, 2002, and other reports filed from time to time with the Securities and Exchange Commission.