TeslaCrypt 4.0: Bigger, Badder and Unbreakable

The ransomware known as TeslaCrypt has enhanced its code—to include unbreakable encryption and a rash of upgrades.

TeslaCrypt was first designed to target computers that have specific computer games installed—but has since widened its purview. The trojan will encrypt all files and lock victims out of their systems, and then ask for ransom for the decrypt key, which can vary between $150 and $1000 worth of bitcoins.