Apache worm starts to spread Security experts are rushing to decode a worm program that exploits a 2-week-old flaw to infect computers running vulnerable versions of the popular open-source Apache Web server application. The worm is thought to be capable of spreading only to Web servers running the FreeBSD operating system, an open-source variant of Unix, that haven't had a patch applied for the recent flaw. Although few people have reported the worm, it is thought to be infecting vulnerable Web servers worldwide. "It is spreading," said Domas Mituzas, a systems developer for Baltic information-technology firm Microlink Systems and the...