CryptoWall is a million-dollar business. The file-encrypting ransomware has netted the criminal gang responsible for its development and dispersal, more than $1.1 million in the six months it

The ransom payments are in stark contrast to the recommendations of some experts who advise ransomware victims to avoid remitting payments because decryption keys or instructions on how to unlock computers or recover files generally are not provided by the criminals.

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