Lock Your Screen

Security Awareness — Decoy Screens

Pick a screen below and display it in fullscreen on an unattended computer. Anyone who clicks it or presses a key will get a short reminder about locking their screen.

Tip: you can also press F11 on Windows or Ctrl+Cmd+F on a Mac to toggle fullscreen manually.

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Updating macOS
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Monday, 1 January

Your files have been encrypted

All documents, photos, databases and other important files on this computer have been locked with military-grade encryption.

Encrypting files... 0% — do not power off this device

This was a security awareness test

This screen was a simulation, not a real attack. But it only took a click to "get in" — that's exactly how easy it is for someone to access an unattended, unlocked computer.

Please remember to lock your screen every time you walk away.

  • Win + L  — Windows
  • Ctrl + Cmd + Q  — Mac