(IRN) – The FBI is warning of a new scam targeting Illinois residents.

The cyber-scam starts with your computer locking up, followed by a pop-up on the screen claiming the computer has been hacked.

The pop-up contains a phone number, and when you dial it, it leads to scammers claiming to be from a bank or the Social Security Administration.

Officials said if you see the pop-up, disconnect your computer from the internet immediately and turn off your WiFi.