Microsoft Teams to add brand impersonation warnings to calls

Key Points:

• Microsoft Teams is introducing "Brand Impersonation Protection" to warn users about external callers impersonating trusted organizations in social engineering attacks.
• This feature will automatically check incoming VoIP calls from first-time external contacts for signs of brand impersonation, displaying high-risk call warnings to enhance security and reduce the risk of scams.
• IT departments should prepare support staff for potential user inquiries regarding these alerts and update internal training materials accordingly.

Technical Details: The new feature will be rolled out in mid-February and will be enabled by default, requiring no admin actions. It aims to proactively safeguard users against fraudulent calls by identifying suspicious signals during conversations.

MITRE ATT&CK Techniques: None mentioned

IOCs Mentioned: None mentioned