Trend Micro's PC-cillin 2000 Achieves ICSA Certification for Windows 2000

Desktop Antivirus earns On-Demand/On-Access Antivirus Product Certification for 100% detection of 'in the wild' viruses

Cupertino, CA - July 17, 2000 - Trend Micro Inc. (Nasdaq: TMIC), a leader in enterprise and personal antivirus and content security for the Internet age, today announced that its consumer desktop antivirus software, PC-cillinr 2000, has been granted ICSA Certification by the Anti-Virus Product Developers Consortium. Antivirus product certification testing was recently revised to include products that protect the Windows 2000 operating system. To achieve ICSA Anti-Virus Certification, products are tested for their ability to detect 100% of the "in the wild" viruses as they enter the system (On-Access) and also during periodic file and directory scans (On-Demand).

PC-cillin 2000 provides a reliable and easily managed antivirus solution for Windows 2000. Users of Outlook Express 4.0, Eudora Pro 4.0 or any other POP3 mail client can take advantage of the real-time email virus-scanning feature; viruses can be detected and cleaned from incoming messages before they have a chance to infect the desktop. Users of newer versions of Outlook can also scan for viruses in emails stored in personal folders. PC-cillin 2000 is still the only desktop antivirus software solution that bears the "Certified for Microsoft Windows" logo, issued by VeriTest independent lab services.

ICSA sets standards for commercial security products and provides independent and objective cross-industry product certification programs. The ICSA Labs Product Certification Program provides objective assurance to the computer user community that those products that receive certification provide and maintain the highest standard of virus detection and reduces security threats associated with Internet use. The Anti-Virus Product Developers Consortium (AVPD), which has reviewed PC-cillin 2000, is a forum for the exchange of information among leading antivirus product developers, and supports an industry-wide standard for the testing and certification of antivirus products.

"Recent virus outbreaks, such as Loveletter and LifeStages, spread quickly among Internet mail users and have made users realize the need for industrial-strength virus products, like PC-cillin 2000," said Oscar Chang, senior vice president of product development at Trend Micro. "Third party certification, like ICSA's, assures our users that PC-cillin catches these and all other in-the-wild viruses."

ICSA's virus libraries and test suites are updated at least monthly and products are randomly tested every 60 days to assure they are current. Products that fail spot checks from the previous month's library must correct the problem and ship the solution or lose their certification status. The complete criteria for certifications can be found at http://www.icsa.net/html/communities/antivirus/certification/.

About PC-cillin 2000

PC-cillin 2000 provides home users with an easy-to-use and affordable total security system for the Internet age, incorporating the same technologies available in Trend Micro's high-powered enterprise software packages. The PC-cillin 2000 desktop antivirus solution blocks all kinds of viruses - malicious Java applets, Active X controls and web scripts - that can be passed through web sites, email, network servers, CD-ROMs or floppy disks. PC-cillin 2000 also features web site blocking options to prevent access to offensive web sites.

Named "best all-around antivirus program" by editors of WinMag.com, PC-cillin has also previously been honored by the editors of PC Magazine, and inducted into WinMag.com's 1999 and 2000 WinList of outstanding software products.

Pricing and Availability

Trend Micro's PC-cillin 2000 is available for download for $29.95, or on CD-ROM for $39.95. Downloads, upgrades, and CD-ROM versions of PC-cillin 2000 are available through http://www.pc-cillin.com. For additional information, please contact Trend Micro's customer service representatives at 1-800-228-5651 (in North America).

About Trend Micro

Trend Micro provides centrally controlled server-based virus protection and content-filtering products and services. By protecting information that flows through Internet gateways, email servers, and file servers, Trend Micro allows companies worldwide to stop viruses and other malicious code from a central point before they ever reach the desktop.

Trend Micro's corporate headquarters is located in Tokyo, Japan, with business units in North and South America, Europe, Asia, and Australia. The North American head office is located in Cupertino, CA. Trend Micro's products are sold directly and through a network of corporate and value-added resellers.

Evaluation copies of all of Trend Micro's products may be downloaded from its award-winning site, http://www.antivirus.com.

About ICSA.net

ICSA.net, a GartnerGroup affiliate, is an industry leader in the growth and improvement of Internet security. ICSA.net offers TruSecure security services as well as multi-vendor, cross-industry product certification programs. ICSA.net helps businesses reduce their information security risks and enables the expansion of Internet technology implementation. ICSA.net has used its leadership and expertise to support the growth of Internet business and commerce worldwide.

Trend Micro's Notice Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Act of 1934, as amended. Forward-looking statements in this release include, but are not limited to, statements regarding the ability of PC-cillin 2000 to detect 100% of in-the-wild viruses. The forward-looking statements involve risks and uncertainties including, but not limited to, the effectiveness of Trend Micro's products in detecting computer viruses, and other risks indicated in the "Risk Factors" section of Trend Micro's annual report on Form 20-F dated May 24, 2000. The annual report is on file with the SEC. Actual results could differ materially. Trend Micro assumes no obligation to update this information.

PC-cillin, is a registered trademark of Trend Micro, Inc in the U.S. and a trademark in other countries. Other product and company names may be registered trademarks or trademarks of their respective owners.

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