With each new unrelenting ransomware sample, security researchers understand that no matter how quickly antivirus signatures are updated or how rapidly decryptors are built and shared, current defenses will continue to fall short. The problem is that most adequate defenses are sample-specific; Kaspersky Lab has built ransomware decryptors for CoinVault and Bitcryptor, and Cisco has...

Threatpost Editor Mike Mimoso talks to Synack director of research and well-known OS X hacker Patrick Wardle about the discovery of an OS X malware dropper that likely was developed by the Hacking Team. [embedded content]

Apple has had two cracks at patching a vulnerability that allows malicious apps to bypass its OS X Gatekeeper security feature, and twice has taken a shortcut approach to the fix, said the researcher who reported the flaw. The latest measure to address this was released on Thursday and it appears Apple again took steps to...

Mac malware is a thing. It’s real. Granted it hasn’t reached the critical mass of malicious code for Windows, but recent encounters with WireLurker, XcodeGhost and YiSpecter among others have elevated the conversation to levels where it’s been legitimized. Adding further credence, Google-owned online malware scanner VirusTotal this week announced the availability of sandbox execution...