http://www.bostonglobe.com/business...som-hackers/PkcE1GBTOfU52p31F9FM5L/story.html#
At first, the problems with the Tewksbury Police Department system — difficulty calling up arrest and incident records — seemed to be just the usual system crankiness. No big deal.
But it persisted, and a technician was called in.
That was when the menacing message popped up on the screen, an explanation in the form of a ransom note:
“Your personal files are encrypted,” it read. “File decryption costs ~ $500.”
It continued: “If you really value your data, then we suggest you do not waste valuable time searching for other solutions because they do not exist.”
Tewksbury had joined the list of police departments victimized by “ransomware,” an insidious form of Internet crime that is crippling computers worldwide.
“My initial thoughts were we were infected by some sort of a virus,” Tewksbury Police Chief Timothy Sheehan recalled of the attack on Dec. 8. “Then we determined it was a little bit bigger than that. It was more like cyberterrorism.”