Tewksbury Police Department was attacked by criminals who infected their network with malware program called CryptoLocker . CryptoLocker restricts access to infected computers and demands payment to recover files . Police systems were down last year , and ransom was paid in digital currency by cops in bid to not lose data forever .
Tewksbury Police Department was attacked by criminals who infected their network with malware program called CryptoLocker . CryptoLocker restricts access to infected computers and demands payment to recover files . Police systems were down between four and five days , and ransom was paid in digital currency by cops in bid to not lose data forever .