5 Steps to Improve Your Security Posture in Microsoft Teams

The article details active phishing campaigns that abused Microsoft Teams’ default external access and file-sharing configurations to distribute DarkGate malware via group chat invites; it links this activity to similar Teams attack vectors (e.g., GIFShell, Storm 0324), highlights the platform misconfigurations that enable such attacks, and provides actionable mitigations including disabling or restricting external access, blocking external invitations to shared channels, limiting conversation starters, enabling Microsoft Defender Safe Attachments, and increasing employee education.