Fsociety ransomware group
Fsociety 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
This group is also known by their malware name, FLOCKER.
FSociety is a modern Ransomware-as-a-Service (RaaS) operation that emerged around 2024, named after the fictional hacking collective from Mr. Robot. It runs a double-extortion setup—encrypting victims’ data while simultaneously threatening to leak stolen files via a Tor-hosted portal. Organized campaigns suggest collaborative operations with other cybercrime actors, marking it as a part of a growing ransomware cartel ecosystem.
Current status
Fsociety'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 (29 Aug 2025 04:35 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 Fsociety 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.
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