536573 – Microsoft Teams: Report a Suspicious Call in Microsoft Teams

Product:

Defender, Defender for Office 365, Teams

Platform:

Android, iOS, Linux, Mac, Web, Windows Desktop, World tenant

Status:

In development

Change type:

Links:

Details:

Microsoft Teams now includes a capability that lets users flag calls they believe are unusual or suspicious. When a call is reported, the signal helps Microsoft strengthen security measures and reduce future unwanted or malicious call activity. This feature empowers users to actively contribute to real-time threat detection, enhancing organizational safety.

Change Category:
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Scope:
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Release Phase:
General Availability, Targeted Release

Created:
2025-12-04

updated:
2025-12-18

Docu to Check

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MS workload name

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summary for non-techies**

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Direct effects for Operations**

User Experience Degradation
If users are not trained on how to effectively use the new reporting feature, they may misreport calls, leading to unnecessary investigations and confusion.
   - roles: End Users, IT Support Staff
   - references: https://www.microsoft.com/en-us/microsoft-365/blog/2023/10/01/microsoft-teams-introduces-suspicious-call-reporting/

Increased IT Workload
Without proper preparation, the influx of reports from users may overwhelm IT support, leading to delays in addressing legitimate issues and impacting overall service quality.
   - roles: IT Support Staff, Security Analysts
   - references: https://www.microsoft.com/en-us/microsoft-365/blog/2023/10/01/microsoft-teams-introduces-suspicious-call-reporting/

Configutation Options**

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IT Security**

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explanation for non-techies**

Microsoft Teams has introduced a new feature that allows users to report calls they find unusual or suspicious. This is similar to how you might flag a suspicious email in your inbox. Just like marking an email as spam helps your email provider filter out unwanted messages in the future, reporting a suspicious call in Teams helps Microsoft improve its security measures. This feature is designed to enhance the safety of your organization by allowing users to participate in real-time threat detection.

Think of it like a neighborhood watch program. When residents notice something unusual, they report it to the authorities. This collective vigilance helps keep the neighborhood safe. Similarly, by reporting suspicious calls, users contribute to a safer communication environment within their organization. This feature is available on various platforms, including desktop, Mac, and web versions of Microsoft Teams, and is part of the ongoing efforts to strengthen security with Microsoft Defender for Office 365.