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Informational message... Link to action
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Windows Defender detects and removes this threat.
This threat locks your PC and displays a full-screen message, commonly called a "lock screen".
It pretends to be from the FBI or a national police force and tries to scare you into paying a fine to unlock your PC.
See the Technical information tab for examples of the lock screen.
Typically, this threat gets on your PC when you visit a hacked webpage.