Computer virus infections rose more slowly in 2002, but a stronger breed meant the costs of recovery increased, a new survey found. The 306 companies examined had more than 1.2 million virus incidents affecting 900,000 personal computers, servers and network-perimeter gateways, said ICSA Labs, a unit of TruSecure Corp. of Herndon, Va. That’s 113 infections a month for every 1,000 machines, up 10 percent from the 103 infections a month reported in the previous survey. The infection growth rate was about 13 percent in 2001 and 2000. The most recent survey looked at virus attacks from July 2001 to last December. Full Story