Teresa lavae leaked - Teresa Lavae @teresaalavae x Content Queen of the Week

Cyber experts said it was most likely that the hackers gained access to Graff's files by sending an email which duped a member of staff into opening a file containing a sophisticated 'ransomware' computer virus.

Daria-Romana Pop, intelligence analyst for cyber threat firm Kela, said: 'After they deliver the ransomware note, the operators usually start leaking data to intimidate the victim.

Osechkin claims to have been given the videos by Sergei Savelyev, a Belarusian former inmate of the jail who claims he was asked to archive the footage - and managed to smuggle some out of the country after his release.