Medusa is a ransomware-as-a-service (RaaS) variant first identified in June 2021. As of February 2025, Medusa developers and affiliates have impacted over 300 victims from a variety of critical infrastructure sectors with affected industries including medical, education, legal, insurance, technology, and manufacturing.
The Medusa ransomware variant is unrelated to the MedusaLocker variant and the Medusa mobile malware variant per the FBI’s investigation. FBI, CISA, and MS-ISAC encourage organizations to implement the recommendations in the Mitigations section of this advisory to reduce the likelihood and impact of Medusa ransomware incidents
Read more…
Source: U.S. Federal Bureau of Investigation Cyber Division
Related:
- Malaysia: Nacsa investigating alleged cyber-espionage targeting multiple government bodies
February 7, 2026
The National Cyber Security Agency (Nacsa) is currently investigating alleged incidents of cyber-espionage activity targeting various Malaysian government entities. In a statement to StarLifestyle, a Nacsa spokesperson said the agency is aware of a report published by Unit 42, the threat research unit of US-based cybersecurity firm Palo Alto Networks. The Nacsa spokesperson said the agency ...
- Approaching cyclone: Vortex Werewolf attacks Russia
February 6, 2026
In December 2025 and January 2026, BI.ZONE Threat Intelligence detected malicious activity by a new cluster Vortex Werewolf (SkyCloak). The attacks targeted Russian government and defense organizations. BI.ZONE researchers findings indicate that the adversary used phishing emails to deliver malware to the target systems. Victims received messages containing a download link disguised as a Telegram file‑sharing ...
- China’s Salt Typhoon hackers broke into Norwegian companies
February 6, 2026
The Norwegian government has accused the Chinese-backed hacking group known as Salt Typhoon of breaking into several organizations in the country. In a report published on Friday, the Norwegian Police Security Service said the hacking group, believed to be working for the Chinese government, targeted vulnerable network devices to conduct espionage. Norway is the latest country ...
- Novel Technique to Detect Cloud Threat Actor Operations
February 6, 2026
Cloud-based alerting systems often struggle to distinguish between normal cloud activity and targeted malicious operations by known threat actors. The difficulty doesn’t lie in an inability to identify complex alerting operations across thousands of cloud resources or in a failure to follow identity resources, the problem lies in the accurate detection of known persistent threat actor ...
- Photo-Sharing Platform Flickr Issues Data Breach Warning
February 6, 2026
It’s not been the greatest start to February as far as data breaches are concerned. Substack has confirmed it has been hacked, and now Flickr has issued a warning to users concerning a data breach vulnerability that might have leaked their personal data. Although it’s unknown how many users may have been affected at this stage, ...
- Dynowiper: Destructive Malware Targeting Poland’s Energy Sector
February 6, 2026
The coordinated destructive campaign against critical energy infrastructure occurred on December 29, 2025, during a period of severe winter weather in Poland. According to CERT Polska’s report, the campaign targeted: 30+ wind and solar farms across Poland; A major CHP plant supplying heat to nearly half a million customers; A manufacturing sector company characterized as an ...