Microsoft Teams: Report a Suspicious Call in Microsoft Teams

Vendor: Microsoft
Product: Microsoft Teams, Microsoft Defender for Office 365
Type: Security
Announcement date: 2025-12-04
Effective date: Date not published
Impact: Affected

In brief

What the source says

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. GA date: March CY2026 Launched General Availability Targeted Release Worldwide (Standard Multi-Tenant) Microsoft Teams Microsoft Defender for Office 365 Desktop Mac Web

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Reading for a salesperson

Who is affected: The audience described by the Microsoft update is represented by: Microsoft Teams: Report a Suspicious Call in Microsoft Teams 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. GA date: March CY2026 Launched General Availability Targeted Release Worldwide

Why it matters: The change matters because the official source describes: Microsoft Teams: Report a Suspicious Call in Microsoft Teams 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. GA date: March CY2026 Launched General Availability Targeted Release Worldwide

Urgency: Monitor

Next action: Review affected accounts with the customer using the official announcement.

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Raw capture
2026-08-29T09:22:49.319599+00:00
Event
Microsoft Teams: Report a Suspicious Call in Microsoft Teams 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. GA date: March CY2026 Launched General Availability Targeted Release Worldwide (Standard Multi-Tenant) Microsoft Teams Microsoft Defender for Office 365 Desktop Mac Web
source
Product Microsoft Teams
Microsoft Teams: Report a Suspicious Call in Microsoft Teams 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. GA date: March CY2026 Launched General Availability Targeted Release Worldwide (Standard Multi-Tenant) Microsoft Teams Microsoft Defender for Office 365 Desktop Mac Web
source
Product Microsoft Defender for Office 365
Microsoft Teams: Report a Suspicious Call in Microsoft Teams 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. GA date: March CY2026 Launched General Availability Targeted Release Worldwide (Standard Multi-Tenant) Microsoft Teams Microsoft Defender for Office 365 Desktop Mac Web
source
Insight a salesperson
Microsoft Teams: Report a Suspicious Call in Microsoft Teams 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. GA date: March CY2026 Launched General Availability Targeted Release Worldwide (Standard Multi-Tenant) Microsoft Teams Microsoft Defender for Office 365 Desktop Mac Web
source

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