Ransomware victim disclosure

BAVACAI

Claimed by MEDUSA LOCKER (aka BAVACAI · listed 18 hours ago

8050 files

Records

Today

Age

since listed · data leaked

Status timeline

Listed
May 31, 2026
Data leaked

At a glance

Group: MEDUSA LOCKER (aka BAVACAI
Status: Data leaked
Country: DE
Sector: Legal Services
Listed on leak site: May 31, 2026
Records: 8050 files

What the group claims

Victim identified as 'bapamai' on the leak site. Leaked files appear to be legal documents (GBA - Grundbuchamtsachen/land registry or court documents) related to various German locations including Gundernhausen-Darmstadt, Schwanheim, Bensheim, Ober-Roden, suggesting a German legal or notary firm.

The leak post

captured from the group's site

⚠ Demo access — showing up to 10 files per folder. Full data will be available after publication.   
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|  |  
|  [(006-2023 N) GBA v. Gundernhausen-Darmstadt Blatt 2149 Wohlgemuth.doc](http://t33zoj4qwv455fog7qnb2azi5xcdxkixughmmduzbw2rtdgryqfbh6id.onion/company/bapamai/preview/\(006-2023%20N\)%20GBA%20v.%20Gundernhausen-Darmstadt%20Blatt%202149%20Wohlgemuth.doc)  |  
|  [(007-2023 N) Friedrich, Ubegl.mit Weiterleitung.doc](http://t33zoj4qwv455fog7qnb2azi5xcdxkixughmmduzbw2rtdgryqfbh6id.onion/company/bapamai/preview/\(007-2023%20N\)%20Friedrich,%20Ubegl.mit%20Weiterleitung.doc)  |  
|  [(007-2024 N) GBA v. Ober-Roden, AG Langen Hessen, Blätter 6142 u. 6214 Förster-R-.doc](http://t33zoj4qwv455fog7qnb2azi5xcdxkixughmmduzbw2rtdgryqfbh6id.onion/company/bapamai/preview/\(007-2024%20N\)%20GBA%20v.%20Ober-Roden,%20AG%20Langen%20Hessen,%20Bl%C3%A4tter%206142%20u.%206214%20F%C3%B6rster-R-.doc)  |  
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|  [(009-2022 N) GBA Kusche (Rappe) -.doc](http://t33zoj4qwv455fog7qnb2azi5xcdxkixughmmduzbw2rtdgryqfbh6id.onion/company/bapamai/preview/\(009-2022%20N\)%20GBA%20Kusche%20\(Rappe\)%20-.doc)  |  
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|  [(011-2023 N) GBA v. Schwanheim Blatt 6258 (Werkmann).doc](http://t33zoj4qwv455fo…

Data the group says was taken

legal documents
court documents

Screenshot of the leak post

Sources

Leak posthttp://t33zoj4qwv455fog7qnb2azi5xcdxkixughmmduzbw2rtdgryqfbh6id.onion/company/bapamai/

Source

Indexed 18 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About MEDUSA LOCKER (aka BAVACAI

MedusaLocker (also identified under the alias BAVACAI) is a ransomware group first observed in May 2026, operating with a primary financial motivation consistent with contemporary cybercriminal ransomware operations. Due to the extremely limited public documentation available at this time — with only a single known victim on record and a very recent emergence date — comprehensive attribution, origin, and affiliation details cannot be responsibly stated without risking speculation beyond what is publicly confirmed by authoritative sources such as CISA, the FBI, or Mandiant. It should be noted that a separate, well-documented ransomware family also named MedusaLocker has been publicly tracked since 2019 and operates as a Ransomware-as-a-Service model; whether this BAVACAI-aliased entity represents a rebrand, offshoot, or entirely distinct group sharing the name is not confirmed by available public intelligence. Given the single known victim and the May 2026 first-observed date, this group should be considered an emerging or early-stage threat with minimal public threat intelligence footprint, and analysts are advised to treat any further characterization as preliminary pending additional reporting from law enforcement or the security research community. Monitoring for additional victim disclosures, leak site activity, and technical indicators will be necessary to develop a more complete operational profile. The group has been linked to 6 public disclosures across our corpus. First observed on a leak site on May 15, 2026; most recent post May 31, 2026. The operation is currently active.

Timeline of this disclosure

May 31, 2026BAVACAI listed by MEDUSA LOCKER (aka BAVACAIon the group's public leak site

Records: 8050 files

Other recent disclosures by MEDUSA LOCKER (aka BAVACAI

MEDUSA LOCKER (aka BAVACAI has been linked to 6 public victims on Darkfield. A sample of the most recent: