SECURITY Signal 437
Medusa ransomware breached over 500 U.S. critical infrastructure organizations since 2021
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CISA reports the Medusa ransomware operation has compromised more than 500 critical infrastructure entities across multiple sectors, expanding its reach as a ransomware-as-a-service model.
This surge in attacks signals a growing threat to essential services, with Medusa leveraging affiliates and stolen data to escalate ransom demands. Defenders must prioritize vulnerability mitigation and network segmentation to limit lateral movement and reduce exposure.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Medusa ransomware has targeted healthcare, government, defense, manufacturing, IT, and financial sectors since 2021.
The group operates as a ransomware-as-a-service model, recruiting initial-access brokers and offering payments up to $1 million.
CISA recommends patching vulnerabilities, segmenting networks, and restricting remote access to mitigate attacks.
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