: Once opened, it can steal browser passwords, log keystrokes, or encrypt your files for ransom. Red Flags to Watch For Urgency : The message demands you open the file immediately.

: The email comes from an address you don't recognize.

: Files named like Tarea_971.pdf.exe are always malicious. How to Stay Safe Verify the source : Call the sender to confirm they sent it.

If you've already opened the file,

You are using an outdated browser. The website may not be displayed correctly.