Level 59
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Malware Hunter
The DoppelPaymer Ransomware is the latest family threatening to sell or publish a victim's stolen files if they do not pay a ransom demand.

A new tactic being used by ransomware operators that perform network-wide encryption is to steal a victim's files before encrypting any devices. They then threaten to publish or sell this data if the victim does not pay the ransom.
In emails with the DoppelPaymer Ransomware operators, the threat actors told BleepingComputer that for almost a year they have been stealing data from their victims. They also stated that in the past they have anonymously sold stolen files on the darknet when a victim chose not to pay the ransom.