The TeslaCrypt ransomware was discovered in 2015 and continues to evolve. TeslaCrypt allows the victim to pay the ransom in either bitcoins or PayPal My Cash cards. The malware targets nearly 200 file types and uses a range of encryption, including AES, RSA and ECHD. New variants discovered in late 2018 focus on files associated with computer games, including those included in World of Warcraft, Call of Duty, Fallout, Minecraft and Half-Life, as well as others.