Tokyo, Japan – May 11 , 2011 - Based on recent performance trends, Trend Micro (TSE: 4704), a leader in network antivirus and Internet content security software and services, today announced a revision in its forecasts made public on February 17, 2011. Details are as follows. 

Revision of forecasts for the cumulative period of the fiscal year ending December 31, 2011 (January 1, 2011 to June 30, 2011)

(in millions of yen)

Reason for Revision
Since the business environment surrounding Trend Micro Group tends to fluctuate in the short run, it is difficult to make a highly reliable projection figures on a yearly basis. We, therefore, have decided to announce the earnings on a quarterly basis in the fiscal year ending in December 2011 as well as earnings projection of the succeeding quarter. Today, we announced that the forecast of financial results for the semi-annual of fiscal year 2011 ending June 30, 2011, which is based on the forecast for the second quarter of FY2011.

Notice Regarding Forward-looking Statements
Certain statements that we make in this release are forward-looking statements. These forward-looking statements are based upon management’s current assumptions and beliefs in light of the information currently available to it, but involve known and unknown risks and uncertainties. Many important factors could cause our actual results to differ materially from those expressed in our forward-looking statements. These factors include

• Difficulties in addressing new virus and other computer security problems
• Timing of new product introductions and lack of market acceptance for our new products 
• The level of continuing demand for, and timing of sales of, our existing products 
• Rapid technological change within the antivirus software industry
• Changes in customer needs for antivirus software
• Existing products and new product introductions by our competitors and the pricing of those products 
• Declining prices for products and services
• The effect of future acquisitions on our financial condition and results of operations
• The effect of adverse economic trends on our principal markets
• The effect of foreign exchange fluctuations on our results of operations
• An increase in the incidence of product returns
• The potential lack of attractive investment targets and
• Difficulties in successfully executing our investment strategy

We assume no obligation to update any forward-looking statements. For more details regarding risk factors relating to our future performance, please refer to our filings with the U.S. Securities and Exchange Commission.

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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