Bonn  - QuickTime users should update to version 7.5 as soon as possible. Five security holes have been discovered in older versions of Apple's multimedia player, the German Federal Agency for Security in Information Technology (BSI) in Bonn is reporting.

Hackers can exploit the security holes to sneak malicious software onto vulnerable computers. Both PC and Mac users are potentially affected. The newest QuickTime version can be downloaded from http://www.apple.com/support/downloads. (dpa)