While most viruses target PC users, there has been rise in the number of attacks on Mac systems. Graham Cluley, a security expert with anti-virus firm Sophos, told the BBC that the small number of Mac viruses had made some users complacent.
Security experts have discovered two novel forms of Mac OS X malware. OSX/Tored-A - an updated version of the Mac OS Tored worm - and a Trojan called OSX/Jahlav-C were both found on popular pornographic websites. Users logging on to these sites are asked to download a "missing Video ActiveX Object" but are sent a virus payload instead.