Tokyo, Japan - April 28, 2004 - Trend Micro (TSE: 4704; Nasdaq: TMIC), a leader in network antivirus and Internet content security software and services, today announced that the final terms of Stock Acquisition Rights to be issued as stock options.

1. Amount to be paid upon exercise of Stock Acquisition Rights:
   2,155,000 yen per Stock Acquisition Right (4,310 yen per share)
   
2. Amount to be accounted for as stated capital:
   2,155 yen per share
   
3. Aggregated amount to be issued or transferred upon exercise Stock Acquisition Rights:
   12,930,000,000 yen

Notes:

Issue date of Stock Acquisition Rights:

April 28, 2004

Number of Stock Acquisition Rights to be issued:

6,000(The number of shares to be issued or transferred upon exercise of each Stock Acquisition Right is 500.)

Exercise period of the stock acquisition rights:

From April 28, 2005 to April 27, 2009

About Trend Micro:

Trend Micro Incorporated (TSE: 4704), a global cloud security leader, creates a world safe for exchanging digital information with its Internet content security and threat management solutions for businesses and consumers. A pioneer in server security with over 20 years' experience, we deliver top-ranked client, server and cloud-based security that fits our customers' and partners' needs, stops new threats faster, and protects data in physical, virtualized and cloud environments. Powered by the Trend Micro™ Smart Protection Network™ cloud security infrastructure, our industry-leading cloud-computing security technology, products and services stop threats where they emerge, on the Internet, and are supported by 1,000+ threat intelligence experts around the globe.

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