Like in the movie: Hacker Revenge
The German programmer who fell victim to the ransomware virus decided to take revenge on the attackers and hacked the hacker database, which contained keys for decrypting the files. The German programmer Tobias Frömel has been the victim of hackers who infected his computers with a ransomware virus that encrypts important Fremel files. The programmer had to pay for decrypting the files, but, unsatisfied with this state of affairs, he hacked the database of intruders and downloaded the keys necessary for decryption. Thus, he is able to help other victims of the ransomware virus.