Atomsilo

Active
AtomSilo is a double-extortion ransomware group that emerged in September 2021, exploiting the Atlassian Confluence vulnerability (CVE-2021-26084) for initial access and demanding ransoms up to $1 million, attributed to the Chinese state-linked threat actor BRONZE STARLIGHT.
5 Victims
Dec 21, 2021 First Discovered
Feb 24, 2026 Last Discovered
204 Days Inactive
0% Infostealer
1/3 Sites Online
Known Locations (3)
Leak List - Atomsilo
npmh5ahrgakbniuntyc7io4adm6ietbdbuejrfonowqtyqn24or556qd.onion
AtomSilo
mhdehvkomeabau7gsetnsrhkfign4jgnx3wajth5yb5h6kvzbd72wlqd.onion
AtomSilo
l5cjga2ksw6rxumu5l4xxn3cmahhi2irkbwg3amx6ajroyfmfgpfllid.onion
Intelligence
Victims (5)

Detailed victim list temporarily unavailable

This group has 5 victims. The victim list API is currently responding slowly for this dataset. Country, sector, and infostealer breakdowns are not available at this time. Basic stats (victim count, first/last seen) are shown above from a faster data source.