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Medusa ransomware gang has hit over 500 organizations, CISA warns

Feeds2.Feedburner •Sinisa Markovic • August 19, 2026

Medusa ransomware has breached more than 500 organizations since it first appeared in June 2021, the FBI, CISA, and the Department of Health and Human Services (HHS) said in an updated joint advisory. The update builds on an advisory first issued in March 2025 and draws on FBI investigations conducted as late as April 2026. “Medusa developers and affiliates have impacted over 500 victims from a variety of critical infrastructure sectors,” the advisory reads, listing … More →

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Ransomware Fuels Surge in Global Cyberattacks As of February 12, 2026, organizations worldwide are experiencing an average of 2,090 cyber-attacks per week, largely driven by ransomware incidents. This increase highlights the ongoing challenges faced by businesses in securing their networks against evolving cyber threats. 1922 sources 64

Medusa ransomware gang has hit over 500 organizations, CISA warns

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