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Spring Ring: An Inside Look at Voice Phishing Campaigns in Microsoft Teams

August 31, 2026 · Unit 42 · Severity: HIGH

Learn how the Spring Ring campaign abuses Microsoft Teams and voice phishing to deploy malware and target enterprise domain controllers. The post Spring Ring: An Inside Look at Voice Phishing Campaigns in Microsoft Teams appeared first on Unit 42.

Key Takeaways

  • Unit 42 provides an inside look at Spring Ring voice phishing campaigns operating within Microsoft Teams to trick users into granting access.
  • Organizations should configure Teams security settings and train employees to verify identity before approving remote access or MFA requests.
  • Organizations should review the full article for complete details and implement relevant security measures.
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