Microsoft is rolling out a new layer of defense for Teams Calling: “Brand Impersonation Protection for Teams Calling.” The goal is simple—stop social engineering before a scammer can even get a user to pick up. According to Microsoft, the feature targets the riskiest moment: a first-time inbound call from an external VoIP source. When a user receives a call from outside the organization and it’s the first contact between the parties, Teams evaluates the risk of the caller “posing as” a trusted org—think company reps, customer support, or other legitimate identities. If Teams detects suspicious impersonation signals, it will show a clear “high-risk call” warning before the user answers. And if additional red flags appear during the call, Teams can update the prompt in real time. Good news: it’s enabled by default, requires no extra user configuration, and doesn’t force admins to overhaul existing Calling policies. Users still stay in control—answer, block, or end the call. This is a timely shift as collaboration tools become a common entry point for voice phishing. Train staff to verify internally when they see that warning. #MicrosoftTeams #VoIP #Cybersecurity #AntiScam #SocialEngineering #Phishing
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