Although there have been malicious bots around for some time instant messaging, security firm IMLogic believes that this is the first time someone has tried to use bot code to help spread a worm around an IM network by pretending to be a legitimate user.

BBC: Hand on keyboard

Obviously, IM Smarter has a long way to go, but I think that with the help of our users, we'll quickly continue along that path.

ENGADGET: Interview with David E. Weekly, Founder of Coceve and www.IMsmarter.com

"I think the experience I have gained from the previous Games will help this year, " said Kindred, who won gold in the SM6 200 IM and SB7 100m breaststroke in Athens and who will be appearing in his fourth Paralympics in Beijing.

BBC: GB name Paralympic swimming squad