Ensure external meeting chat is off
Why This Matters
Leaving external meeting chat enabled exposes your organization to potential malware delivery through channels like GIFShell or DarkGate attacks. Attackers can exploit open chat functionality in meetings hosted by untrusted organizations to distribute malicious content directly to your users. By restricting this feature, you significantly reduce the attack surface for external threat actors.
What Aether365 Checks
Aether365 verifies that the "External meeting chat" setting is turned off in your organization-wide meeting policy. This check appears in your Aether365 dashboard under the Microsoft 365 section and validates compliance with CIS benchmark M365.2172.