Frequency
1
occurrences
First Seen
August 31, 2026
Last Seen
August 31, 2026
Related Threat Clusters
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Spring Ring: Voice Phishing Campaigns Target Microsoft Teams Users
Between January and April 2026, a coordinated voice phishing campaign named 'Spring Ring' targeted over 150 employees across 10 companies, using Microsoft Teams to impersonate IT help desk personnel. Attackers employed…
3 articles · Updated August 31, 2026
Recent Intelligence Reports
- Spring Ring: An Inside Look at Voice Phishing Campaigns in Microsoft Teams — Unit42.Paloaltonetworks · August 31, 2026