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Teams Vishing Ransomware

Threat actors impersonate IT via email-bombing and Microsoft Teams vishing to coerce victims into granting remote access (Quick Assist/AnyDesk), deploy loaders and RMM/tools (Qakbot, Cobalt Strike, SystemBC, etc.), and ultimately deliver Black Basta ransomware.

List of posts related to this topic

Post TitleDate PublishedDescribes IncidentFeed
Hackers Abuse Microsoft Teams Chats After Flooding Victims With Spam Emails2026-05-04TrueCyber Press
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Email Bombing and Fake IT Support Calls Fuel New Microsoft Teams Phishing Attacks2026-05-04TruecybersecurityNews.com
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Hackers Impersonate IT Help Desk on Microsoft Teams to Gain Access, Steal Data2026-04-22TrueTechRepublic Security
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Attackers Abuse Microsoft Teams and Quick Assist in New Helpdesk Impersonation Attack Chain2026-04-20TruecybersecurityNews.com
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Microsoft: Teams increasingly abused in helpdesk impersonation attacks2026-04-20TrueBleeping Computer
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Hackers Attack Employees Over Microsoft Teams to Trick Them Into Granting Remote Access2026-03-10TruecybersecurityNews.com
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Ransomware gangs pose as IT support in Microsoft Teams phishing attacks2025-01-21TrueBleeping Computer
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Russian Ransomware Groups Deploy Email Bombing and Teams Vishing 2025-01-21TrueInfosecurity Magazine (News)
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Uptick in Social Engineering Campaign Deploying Black Basta Ransomware2024-12-19TrueArctic Wolf Blog
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Black Basta ransomware poses as IT support on Microsoft Teams to breach networks2024-10-25TrueBleeping Computer
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Black Basta Ransomware Group Affiliates Leveraging Windows Quick Assist for Initial Access2024-06-17TrueArctic Wolf Blog
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Windows Quick Assist Anchors Black Basta Ransomware Gambit2024-05-16TrueDark Reading
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Threat actors misusing Quick Assist in social engineering attacks leading to ransomware2024-05-15TrueMicrosoft Security
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New Black Basta Social Engineering Scheme2024-05-15TrueReliaQuest Blog
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500 Victims In, Black Basta Reinvents With Novel Vishing Strategy2024-05-13TrueDark Reading
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