Shellshock, a serious vulnerability in Bash affecting Linux, UNIX and OS X computers, is making life difficult for IT admins, as vendors rush out patches to stay ahead of the cybercriminals trying to exploit this bug.

Malware authors are constantly developing new techniques to avoid not just antivirus, but the environments used by security researchers to analyze malware samples.

In June, law enforcement in the U.S. knocked out the command and control servers of the Gameover malware that compromised thousands of PCs all around the world. Gameover, developed by hackers using source code from the Zeus family, was particularly effective at spreading the Cryptolocker ransomware that infected so many people in the U.S. and UK last fall and held their files to ransom.

Ransomware has been in the news a lot lately, and mostly it hasn’t been good. Well, there is some positive news to report. After months of success in which thousands of PCs were infected, the hackers behind the ransomware known as CryptoLocker were finally dealt a major setback when law enforcement shut down their command and control servers on the first