[vanman]

Originally Posted by Stuart C

They do get viruses, but fewer Mac viruses exist than PC viruses.

As for the "stealth patch", tbh, it looks like nothing more than a definition update. No different to what Sophos themselves do regularly.

Apple adds stealth patch to fix Trojan vulnerabilityAfter

analysing the patch the researchers found an update to the XProtect.plist file in OSX, which includes malware signatures, which will block the HellRTS trojan first seen in the wild in April. The Trojan masquerades as iPhoto but gives an attacker control the infected system, allowing it to be used to send spam and take part in distributed denial of service attacks.