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:
- Iran targets M365 accounts with password-spraying attacks
March 31, 2026
Suspected Iran-linked threat actors are conducting password-spraying attacks against hundreds of organizations, primarily Middle Eastern municipalities, in campaigns that security researchers believe may have been aimed at supporting bomb-damage assessment following missile strikes. Tel Aviv-based Check Point Research on Tuesday said that the attackers used multiple source IP addresses to target numerous Microsoft 365 accounts, affecting ...
- North Korea-Nexus Threat Actor Compromises Widely Used Axios NPM Package in Supply Chain Attack
March 31, 2026
Google Threat Intelligence Group (GTIG) is tracking an active software supply chain attack targeting the popular Node Package Manager (NPM) package “axios.” Between March 31, 2026, 00:21 and 03:20 UTC, an attacker introduced a malicious dependency named “plain-crypto-js” into axios NPM releases versions 1.14.1 and 0.30.4. Axios is the most popular JavaScript library used to simplify ...
- Weaponizing the Protectors: TeamPCP’s Multi-Stage Supply Chain Attack on Security Infrastructure
March 31, 2026
Between late February and March 2026, threat group TeamPCP conducted a highly calculated, escalating sequence of supply chain threats. It systematically compromised widely trusted open-source security tools, including the vulnerability scanners Trivy and KICS and the popular AI gateway LiteLLM. The affected software also includes the official Python SDK of Telnyx. These ongoing supply chain attacks ...
- GitHub developers targeted by fake VS Code alerts spreading malware
March 30, 2026
Cybercriminals are tricking GitHub into sending out fraudulent email notifications, luring software developers into downloading malware, experts have warned. Security researchers Socket, who said they observed a large-scale, coordinated spam campaign targeting developers on various projects. GitHub has a section called “Discussions”, which is essentially a forum for discussing various projects. When a developer participates in, ...
- Beyond Compliance: How Financial Institutions Can Meet New Fraud-Sharing Mandates While Respecting Privacy
March 30, 2026
Authorized Push Payment (APP) fraud is one of the most damaging forms of digital deception. The pattern repeats itself thousands of times each year: an email from the bank’s security team warning of suspicious activity. A phone call that follows immediately. The caller ID matches. The “fraud prevention officer” knows details about recent transactions. Within minutes, ...
- Bogus Avast website fakes virus scan, installs Venom Stealer instead
March 27, 2026
A fake website impersonating Avast antivirus is tricking people into infecting their own computers. The site looks legitimate, runs what appears to be a virus scan, and claims your system is full of threats. But the results are fake: when you’re prompted to “fix” the problem, the download you’re given is actually Venom Stealer—a type of ...