: You may encounter "Potentially Unwanted Programs" that change your browser settings or track your data [3].

: If you did not specifically request this file or do not recognize the sender, delete it immediately.

: Upload the file (or the download link) to VirusTotal to check it against dozens of different antivirus engines [2, 3].

: If you must inspect the file, open it within a virtual machine or a dedicated sandbox environment (like Windows Sandbox ) to prevent local infection.