Microsoft is expanding its security arsenal with a new call reporting capability coming to Teams this spring.
The feature, set to arrive for Targeted Release customers in mid-March, will allow users to flag suspicious or unwanted calls directly from their call history—a straightforward response to what the company identifies as a significant gap in current threat visibility.
"Currently, users have no simple way to report suspicious calls, leaving organizations without visibility into these threats and without clear guidance on how users should respond,"
Microsoft said in a message center update.
By late April, the functionality will reach general availability worldwide, giving organizations a simple mechanism to surface potential scams and phishing attempts that often go unreported.
This move represents another layer in Microsoft's broader effort to harden Teams against increasingly sophisticated social engineering tactics, particularly as threat actors explore alternatives to text-based attacks that are easier for security systems to analyze and block.
Visibility Where It Matters Most
The reporting process is designed for simplicity. Users will find a "Report a Call" option under "More options" in their Teams call history for one-to-one calls on Windows, Mac, and web platforms.
When someone flags a call as suspicious, limited metadata such as timestamps, call duration, caller ID information, and participant Teams IDs get shared with both the organization and Microsoft.
The feature will be enabled by default across Teams deployments. Administrators who prefer to disable it can toggle off "Report a Call" in the Teams Admin Center under calling settings.
The real value of this feature lies in what happens after users submit reports. Organizations with Defender for Office 365 licenses (Plan 1 or Plan 2) or Defender XDR can access detailed reports through the Microsoft Defender portal, giving security teams granular visibility into potential threats targeting their workforce. For organizations without Defender licenses, basic submission data will be available in the Teams Admin Center under Protection Reports, ensuring that even smaller deployments without premium security subscriptions can track patterns and respond to emerging threats.
Cybersecurity company eSentire's latest threat research found that voice phishing is on the rise, with a shocking 72% success rate in many instances.
This new reporting function could help both Microsoft and businesses respond more effectively to this surge, providing a feedback mechanism that tracks the threat landscape and its evolution.
