threat actor · Russia
UserSec
On record in MISP Galaxy
Sources name this actor but link nothing to it yet: no CVE, technique or software is on record.
UserSec is a pro-Russian hacking group that has been active since at least 2022. The group is known for its DDoS attacks and has collaborated with other pro-Russian hacking groups. In May 2023, UserSec announced a cyber campaign targeting NATO member states and joined forces with KillNet to launch attacks against NATO.
Source: MISP Galaxy. MISP Galaxy threat-actor cluster, by the MISP Project (CC0 1.0).
- Origin
- Russia
- On record in
- MISP Galaxy
Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-15. Sources: MITRE ATT&CK (© The MITRE Corporation, reproduced and distributed with its permission), the MISP Galaxy (CC0), and CyberSIXT's own coverage.