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MalwareSep 2, 2026

Threat Gang 'Springs' Vishing Attacks on Microsoft Teams Users

Threat actor 'Spring Ring' targets Microsoft Teams users with vishing attacks.

Summary

A threat actor known as 'Spring Ring' is conducting a sophisticated operation targeting Microsoft Teams users. The campaign employs vishing (voice phishing) tactics to trick users into granting unauthorized access to their Teams sessions. The ultimate goals include spreading malware, gaining remote access, and potentially compromising entire infrastructures.

Entities

Spring Ring (threat_actor)Microsoft Teams (product)