TeslaCrypt 2.0 makes it impossible to decrypt affected files

From Help Net Security:

TeslaCrypt 2.0 makes it impossible to decrypt affected files

Kaspersky Lab has detected curious behavior in a new threat from the TeslaCrypt ransomware encryptor family. In version 2.0 of the Trojan notorious for infecting computer gamers, it displays an HTML page in the web browser which is an exact copy of CryptoWall 3.0, another ransomware program.

Perhaps the criminals are doing this as a statement of intent: so far, many files encrypted by CryptoWall could not be decrypted, which is not the case with many past cases of TeslaCrypt infection. After a successful infection, the malicious program demands a $500 ransom for the decryption key; if the victim delays, the ransom doubles.