Security Researchers Puzzled by Demise of TeslaCrypt Ransomware

In early May, Igor Kabina, a researcher with security firm ESET, noticed that the group behind the third most prevalent ransomware operation, TeslaCrypt, had seemingly taken a breather.

Following the April release of version 4 of their data-encryption malware, the group’s development efforts had slowed. Wondering if the group was closing up shop, Kabina pretended to be a victim and used their support service to ask if they would release their master key.