Ransomware is now one of the fastest growing classes of malicious software, says Kaspersky Lab researcher Fedor Sinitsyn.
Simplocker, the first Android ransomware that actually encrypts files located on the device, has begun to target English-speaking users, ESET researchers warn.
It was only a matter of time until cyber criminals got their hands on a piece of government-made malware and repurposed it for their own criminal needs.
Bitdefender warns that while CyptoLocker is currently disabled, it could come back to life at any moment.
University of Sussex student Simon Bell has reverse-engineered the Android Simplocker (Simplelocker) ransomware, and has created a Java program that can be converted into an Android app to decrypt the files encrypted by the malware.