Clara leaned back in her chair. She had learned the most important lesson of the digital age: The lock is only as strong as the session keeping it. And every online cage has a hidden key — you just have to know which three dots to click.

She clicked.

She reopened the file. The padlock was gone. The cells were white and editable again.

From that day on, every new intern at LogiCorp received a sticky note on their monitor: "If Excel Online traps you, don't panic. Go to OneDrive. Find the three dots. Desbloquear es poder." (To unlock is power.)

There it was: → "Cerrar sesiones activas" (Manage access → Close active sessions).