Brand Impersonation Protection: Securing Teams Calling Against Fraud
TL;DR: Microsoft is introducing a new security feature for Teams Calling that detects and warns users about brand impersonation from external callers. Starting in mid-March 2026, this ‘on-by-default’ update will help mitigate vishing and social engineering risks. This should be rolling out in March according to Microsoft. The Evolution of Voice-Based Phishing In the modern
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