A nurse from Rochdale is thought to be one of the first UK victims of a scam that encrypts files on a hard drive and only unlocks them if the user pays a ransom.
Computers infected with 'ransomware' lock users out of their files and leave a note with details of how they can get them back.
In a step more often seen in the movies, the note tells users not to call the police and points them to a site where they can pay the ransom.
Senior sister Helen Barrow was told that she would have to buy goods from an online pharmacy to receive a password that would unlock her files.
It is thought that the malware could have been downloaded to the PC after Barrow clicked on a fake virus warning.
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