B0 Group ransomware group
B0 Group is one of the extortion operations we watch continuously. This page covers what is known about the group and the current state of its leak site, which we last saw change 1y ago.
Who they are
B0 is a relatively obscure ransomware operation with very limited public reporting outside of leak site monitoring. It appears to operate a data-extortion model, with a dedicated leak site on the Tor network, and no confirmed use of encryption-based ransomware in documented incidents. The group is listed in ransomware tracking services from at least mid-2024, but there are no major vendor reports describing their victimology, intrusion methods, encryption schemes, or specific targeting patterns. Its branding and operational style suggest a small, self-contained group rather than a large RaaS platform.
Current status
B0 Group's leak site is not answering. Sites go dark for infrastructure trouble, a deliberate quiet period, or a takedown, and a good number return weeks later under the same name, so the entry stays on the list either way.
The last change we recorded on it was 1y ago (8 May 2025 22:00 UTC).
Which organisations this group has named, and when, is part of the SINON platform rather than this page. Create an account to search it, or to be told automatically if a name you care about turns up.
Sectors targeted
This group does not state an industry on its site, so we have nothing reliable to report. Most crews are opportunistic rather than sector-specific in any case — they hit what they can reach.
Watching for your name
If B0 Group posts your company, a supplier or a subsidiary, you want to hear it from us rather than from a journalist. SINON checks these sites continuously and alerts on the names you give it.
Start monitoring