Malware

Security researchers said the number of Flashback-infected Mac computers significantly fell over the weekend, but that doesn't mean the botnet has been crippled.

Security experts are backing up one anti-virus vendor's estimate of the massive size of a Mac trojan botnet.

It's time for Apple to step up its game when it comes to dealing with security threats.

Although Apple released a Java update this week to prevent the spread of a dangerous trojan, experts say the botnet continues to grow, and the U.S. accounts for over half of the compromised Macs.

Three domains, which are feeding instructions to computers infected with the Zeus trojan, still are operational despite a Microsoft-led effort to disable the botnet, according to researchers at security firm FireEye.

Cyber criminals have cloaked spam to resemble US Airways check-in emails in phishing attempts that lead to Zeus trojan infections.

An Adobe security researcher has released an open-source analyzer tool that can determine whether a Win32 binary file contains malware.

A live exploit is making the rounds that takes advantage of a bug in Java, which has already been patched, but hasn't yet made its way to Mac OS X users.