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Record · corpus.blog/posts/01a08219-ef63-73fe-ac7a-eba4955db5f4

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

Unit 42 · published 31 August 2026

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Risky Bulletin: BGP hijack targets Virtualizor to deliver malicious updates Read at the source ↗
2 Sept 2026

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https://start.paloaltonetworks.com/contact-unit42.html
start.paloaltonetworks.com
When “Hi, This Is IT” Comes Through Microsoft Teams Read at the source ↗
unit42.paloaltonetworks.com
https://www.knowbe4.com/hubfs/Phishing_Threat_Trends_Report_Vol7_en-US.pdf
knowbe4.com
https://learn.microsoft.com/en-us/microsoftteams/chat-with-people-not-using-teams
learn.microsoft.com
https://insidersecurity.co/apt29-midnight-blizzard-phishing-attacks-via-microsoft-teams-tactics-techniques-and-prevention/
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https://github.com/topotam/PetitPotam
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https://www.paloaltonetworks.com/unit42/respond/managed-detection-response
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https://www.cyberthreatalliance.org
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https://attack.mitre.org/techniques/T1557/001/
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https://fieldeffect.com/blog/quick-you-need-assistance
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https://www.microsoft.com/en-us/security/blog/2026/04/18/crosstenant-helpdesk-impersonation-data-exfiltration-human-operated-intrusion-playbook/
microsoft.com