Kaspersky Security Bulletin. Spam and phishing in 2015

In 2015, the proportion of spam in email traffic decreased by 11.48 percentage points and accounted for 55.28%. This reduction was caused by the migration of advertising for legal goods and services from spam flows to more convenient and legal platforms, as well as by the expansion of the “gray” zone in mass mailings. Read Full Article

Hidden tear and its spin offs

A while ago Turkish security group Otku Sen created the hidden tear ransomware and published the source code online. Idea behind it was to “teach” security researchers how ransomware works. Right from the beginning the reaction of various security professionals was negative. And we were right, it didn’t take long before the first ransomware variants arrived based on the hidden tear source code. Read Full Article