Cryptowall is still "the most current and significant ransomware threat targeting US individuals and businesses," the FBI warned in a public service announcement published on Tuesday.
It took less than a week for a functional exploit for a recently patched Adobe Flash Player vulnerability to be added to the Magnitude exploit kit, Trend Micro researchers warn.
In the first quarter of 2015, McAfee Labs registered a 165 percent increase in new ransomware driven largely by the new, hard-to-detect CTB-Locker ransomware family, a new ransomware family called Teslacrypt, and the emergence of new versions of CryptoWall, TorrentLocker and BandarChor.
PandaLabs published its Quarterly Report for Q1, analyzing the IT security events and incidents from January through March 2015.
Thousands of Android users are at risk of having their mobile devices and private contents locked by a particularly ruthless ransomware that demands $500 to restore access.
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