A virus called Archiveus is really sneaky - once it infects your computer, it will encrypt your files and hold it for ransom!
This virus swaps files found in the "My Documents" folder on Windows with a single file protected by a 30-digit password. Victims are only told the password if they buy drugs from one of three online pharmacies.
Ms Barrow is thought to have fallen victim when she responded to an on-screen message warning her that her computer had contracted another unnamed virus. The virus asks those it infects to buy drugs on one of three websites to get their files back.
The good news is that anti-virus companies discovered that the password is encoded in the virus itself (yes, that's the password on the left).
