Mount Pleasant police car (copy)

Mount Pleasant Police Department. File

The Mount Pleasant Police Department is on alert after its computer system was hit by ransomware.

The ransomware — a type of computer virus that hijacks a computer's files, blocking access until a sum of money is paid — was discovered around noon Monday, said Inspector Chip Googe, a department spokesman.

It's not yet known where the attack originated from, Googe said. The department was able to restore its files through backups.  

The department was able to isolate two infected computers and remove them from the network, he said. The ransomware was traced to an email account.

"No evidence has been lost as a result of this incident," Googe said. "The Town of Mount Pleasant has raised its cyber threat awareness and is taking additional measures to ensure there are no further incidents."

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Reach Gregory Yee at 843-937-5908. Follow him on Twitter @GregoryYYee.

Gregory Yee covers breaking news and public safety. He's a native Angeleno and previously covered crime and courts for the Press-Telegram in Long Beach, CA. He studied journalism and Spanish literature at the University of California, Irvine.