Common attachment type filter is enabled.

Why This Matters

Attackers often use file types like executables or scripts to deliver malware through email. Without a common attachment type filter, your organization is vulnerable to weaponized attachments that bypass other defenses. Enforcing this filter reduces the attack surface by blocking known dangerous file extensions before they reach your users.

What Aether365 Checks

This check verifies that your Microsoft 365 anti-malware policy has the common attachment type filter enabled. It appears in the Aether365 dashboard under the microsoft-365 service category with ID ORCA.205.