scareware

The "fake FBI lock screen" prank, often categorized as a form of or ransomware simulation , is a digital phenomenon that sits at the intersection of dark humor, psychological manipulation, and serious cybersecurity risk. While often shared as a "joke" to startle friends, these screens mimic actual malicious software—specifically the notorious Reveton ransomware —which has historically been used by cybercriminals to extort millions of dollars from unsuspecting users. The Psychology of Fear

"FBI Warning" prank

Ever wanted to see your tech-savvy friend lose their cool for a second? The is a classic. It’s harmless, hilarious, and works best when they least expect it.

Go Full-Screen

: Open the image in a web browser or image viewer and press F11 (Windows) or Cmd+Ctrl+F (Mac) to enter full-screen mode. This hides the address bar and taskbar, making it look like the computer is actually locked.

Which alternative would you like?

In a prank context, the goal is simply to see the victim's panicked reaction before revealing it's just a browser tab or a static image. 🛠️ How to Set Up the Prank