Swansea police say they were forced to pay $750 in ransom earlier this month to hackers after a virus locked all of their computer files.
The police department noticed a problem opening their files on Nov. 6. After opening an e-mail attachment from what looked like a trusted source, a window popped up on the screen saying all the computer’s files were encrypted, said Lieutenant Gregory Ryan.
The virus, called CryptoLocker, has been attacking computers since late September or early October, a computer expert told Ryan. Full story for BostonGlobe.com subscribers.