Chaos ransomware
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MuddyWater linked to Microsoft Teams intrusion that used Chaos ransomware branding
A Rapid7 technical analysis says MuddyWater used Microsoft Teams, screen-sharing and remote access tools in an early 2026 intrusion that looked like Chaos ransomware but focused on data theft and persistence.
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US, allies disrupt BlackSuit ransomware network; servers seized and funds frozen as researchers warn of rebranding to Chaos ransomware
U.S. and international partners disrupted the BlackSuit ransomware network, seizing servers and freezing about $1.09 million, while security researchers warn the group may have rebranded as Chaos ransomware and remain a threat.
