The Yamanner Yahoo! worm
If you belong to any Yahoo! groups, or use Yahoo! email, you’ve seen the latest email worm to hit the Internet. Luckily, Yamanner is just an annoyance, not really a damage-causing problem.
Information Week’s article on the worm indicates that this is likely to be only the first occurrence of many such problems, and why. Their Ajax 101 article briefly explains the Ajax/JavaScript interaction and why it can create such problems.
