Kazu
Kazu is a financially motivated ransomware group known for employing a double extortion model, targeting sectors such as healthcare and government. The group has claimed responsibility for multiple high-profile breaches, including those of Manage My Health and the Defensoría del Pueblo de Colombia, exfiltrating sensitive data through techniques like exploiting unpatched vulnerabilities and credential reuse. Kazu has demanded ransoms ranging from $60,000 to $500,000, threatening public disclosure of stolen data if payments are not made. Their operations have primarily focused on entities in Latin America, Asia, and the Middle East, with a notable presence on dark web leak sites.
CVEs in recent coverage
No CVEs named alongside this actor in the last 90 days.
Recent victims
No leak-site posts on record for this group.
Recent activity
No posts or advisories have named this actor recently.
References
- https://www.cyfirma.com/research/cyber-threat-landscape-report-united-arab-emirates-uae/
- https://botcrawl.com/national-civil-service-commission-of-colombia-data-breach/
- https://www.hipaajournal.com/doctor-alliance-data-breach-claim/
- https://databreaches.net/2025/11/18/from-bad-to-worse-doctor-alliance-hacked-again-by-same-threat-actor/
- https://botcrawl.com/saudi-icon-data-breach/
- https://www.ransomlook.io/group/kazu
From the MISP threat-actor galaxy, MITRE ATT&CK and RansomLook (CC BY 4.0). Activity is any post or advisory Watch Floor collected that names the actor or one of its aliases.