Russian malware writers have put a price on the head of infected Macs -- 43 cents -- according to a security researcher.
A presenter at last week's Black Hat security conference demonstrated a method by which a keylogging program could be inserted in Apple's keyboard firmware.
According to Sophos, some malware disguised as a racy video can affect Macs as well as PCs.
Twitter users have been tricked into divulging their login and password details to a Web site that then spammed their contacts.
Trend Smart Surfing is new security software for the Mac.
An infected copy of iWork has apparently led to the first substantial Mac-based botnet, a network of computers harnessed to attack Web sites.
A recently-discovered bug in VMware Fusion for the Mac would allow a guest operating system (such as Windows or Linux) to run code on OS X.
Google Voice has patched flaws that could be used to create a PBX botnet, according to a security researcher.
Twitter was hit with at least three different worm attacks that started Saturday and continued into Sunday.
The Conficker worm is supposed to take active steps on Wednesday to protect itself against detection and removal. But if you use Mac OS X you have nothing to worry about -- unless you also use Boot Camp and/or Windows inside a virtual machine.