Software that looks legitimate but provides a "backdoor" for hackers to control your computer.

Opening the .zip file or double-clicking any executable (like .exe , .scr , or .vbs ) inside it can trigger an immediate infection.

Use your email provider's "Report Phishing" or "Report Spam" button to help protect others.

A .zip file is a compressed folder. Because the contents are compressed, many basic email filters cannot "see" what is inside without extracting it, which is why hackers prefer them. Common payloads include:

Cybercriminals often use vague but intriguing filenames like "Prototype," "Invoice," or "Document" to pique a user's curiosity. By adding the Polish prefix "Plik:", the attacker may be targeting Polish-speaking users or organizations, making the file appear like a standard system notification or a legitimate business transfer. Common Threats Hidden in .ZIP Files

If the email appears to be from a colleague, contact them through a different platform (like a phone call or a new chat thread) to ask if they sent it.

Plik: Prototype.zip ... Apr 2026

Software that looks legitimate but provides a "backdoor" for hackers to control your computer.

Opening the .zip file or double-clicking any executable (like .exe , .scr , or .vbs ) inside it can trigger an immediate infection. Plik: Prototype.zip ...

Use your email provider's "Report Phishing" or "Report Spam" button to help protect others. Software that looks legitimate but provides a "backdoor"

A .zip file is a compressed folder. Because the contents are compressed, many basic email filters cannot "see" what is inside without extracting it, which is why hackers prefer them. Common payloads include: By adding the Polish prefix "Plik:", the attacker

Cybercriminals often use vague but intriguing filenames like "Prototype," "Invoice," or "Document" to pique a user's curiosity. By adding the Polish prefix "Plik:", the attacker may be targeting Polish-speaking users or organizations, making the file appear like a standard system notification or a legitimate business transfer. Common Threats Hidden in .ZIP Files

If the email appears to be from a colleague, contact them through a different platform (like a phone call or a new chat thread) to ask if they sent it.