Blacklock
Blacklock is a ransomware group with a financial motive, tracked by Brandefense. It targets 13 sectors, including Government and Technology, in 21 countries, including the United States and the United Kingdom.
Also known as
- El Dorado
- Techniques
- 0
- Exploited CVEs
- No CVE data
- First seen
- Mar 1, 2024
- Last seen
- Mar 11, 2025
- Record updated
Who They Target.
Sectors · 13
Countries · 21
About Blacklock.
BlackLock is a rebranded version of another ransomware group known as Eldorado. It has since become one of the most active extortion syndicates in 2025, heavily targeting technology, manufacturing, construction, finance, and retail sectors.
Last updated Oct 1, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.