In 1997, Trend Micro filed a lawsuit against two competitors--Symantec and Network Associates--alleging patent infringement of its InterScan VirusWall technology. Trend Micro prevailed in this contest of a David and two Goliaths.
1997 年，一場趨勢與競爭對手──「賽門鐵克」和「網路聯合」──的訴訟，就導因於趨勢開發的「空中抓毒」技術有被模倣之嫌。