Attributed to ALPHV/BlackCat in public reporting · Feb 21, 2024TN
Change Healthcare BA/Vendor · ransomware
Corroborated
Threat actors · /threat-actors
Threat actors
Groups that have listed US dental organizations on leak sites, with each claim tied to its record and public sources. Listed alphabetically, not ranked.
Attribution is a claim, not a finding.A group posting an organization's name on a leak site does not prove it was responsible, or
that data was taken. DDSBreach has not verified these claims, and the organizations may
dispute them. We never link to leak sites, onion addresses or samples.
71Groups with dental recordsLast 5 years · DDSBreach records
192Dental records with a named groupClaims and attributions, last 5 years
12Groups with a law-enforcement actionTakedowns, sanctions or CISA/FBI advisories
GroupClaims
3AM 2 Active in dental data 2025-20258Base 3 Active in dental data 2023-2025Abyss 1 Active in dental data 2023-2023abyss-data 1 Active in dental data 2023-2023Akira 7 Active in dental data 2025-2026alphalocker 3 Active in dental data 2025-2025ALPHV/BlackCat 7 Active in dental data 2022-2024Anubis 2 Active in dental data 2026-2026Barracuda 2 Active in dental data 2026-2026Beast 4 Active in dental data 2025-2026BianLian 6 Active in dental data 2022-2025blackbyte 1 Active in dental data 2021-2021blackshrantac 1 Active in dental data 2026-2026BrainCipher 1 Active in dental data 2024-2024bravox 1 Active in dental data 2026-2026Chaos 2 Active in dental data 2026-2026ciphbit 1 Active in dental data 2024-2024Cl0p 3 Active in dental data 2023-2023clop torrents 1 Active in dental data 2023-2023coinbasecartel 1 Active in dental data 2026-2026CRPxO 7 Active in dental data 2026-2026Dark Project 1 Active in dental data 2026-2026DireWolf 1 Active in dental data 2026-2026dispossessor 3 Active in dental data 2020-2024DragonForce 2 Active in dental data 2025-2025emperador 1 Active in dental data 2026-2026Everest 7 Active in dental data 2023-2026genesis 1 Active in dental data 2026-2026Global Secret Group 1 Active in dental data 2026-2026gunra 1 Active in dental data 2026-2026helldown 1 Active in dental data 2024-2024Hive 1 Active in dental data 2022-2022Hunters International 1 Active in dental data 2024-2024Hyflock 1 Active in dental data 2026-2026INC Ransom 8 Active in dental data 2025-2026Interlock 4 Active in dental data 2025-2026kazu 1 Active in dental data 2025-2025knight 2 Active in dental data 2023-2023lamashtu 2 Active in dental data 2026-2026LockBit 9 Active in dental data 2021-2026lv 2 Active in dental data 2022-2022Lynx 2 Active in dental data 2026-2026mad liberator 1 Active in dental data 2024-2024Medusa 4 Active in dental data 2023-2025money message 1 Active in dental data 2023-2023Monti 2 Active in dental data 2023-2024mydata 3 Active in dental data 2025-2025NightSpire 4 Active in dental data 2024-2026Nitrogen 1 Active in dental data 2026-2026noescape 1 Active in dental data 2023-2023obscura 3 Active in dental data 2025-2025Orova 2 Active in dental data 2026-2026Pear 2 Active in dental data 2026-2026pysa 3 Active in dental data 2021-2021Qilin 18 Active in dental data 2024-2026Quantum (attributed by researchers; not named by the company) 1 Active in dental data 2022-2022ransomed 1 Active in dental data 2023-2023RansomHub 3 Active in dental data 2024-2025Rhysida 4 Active in dental data 2024-2026Royal 3 Active in dental data 2022-2023SafePay 6 Active in dental data 2025-2026Shiba 1 Active in dental data 2026-2026ShinyHunters (claimed) 1 Active in dental data 2026-2026Sinobi 8 Active in dental data 2025-2026snatch 1 Active in dental data 2023-2023SpaceBears 6 Active in dental data 2024-2026Termite 2 Active in dental data 2026-2026The Gentlemen 9 Active in dental data 2025-2026titan 1 Active in dental data 2026-2026trinity 1 Active in dental data 2024-2024worldleaks 1 Active in dental data 2026-2026 /group/alphv-blackcat
ALPHV/BlackCat
7 dental records in the last 5 years, across 4 states or countries.Also known asBlackCat, Noberus
Typeransomware/extortion group
Active in dental data2022-2024
Dental victims (all years)7
First seen (5-yr records)Mar 22, 2022
Last seen (5-yr records)Feb 21, 2024
Law-enforcement record
Dec 2023 FBI disruption
Dental records attributed to ALPHV/BlackCat · last 5 years
Listed by ALPHV/BlackCat on a leak site · Feb 18, 2024US
Dental practice · US Other dental org · Leak-site claim
Claim reported
Attributed to ALPHV/BlackCat in public reporting · Oct 15, 2023NY
Henry Schein, Inc. BA/Vendor · ransomware
Regulator filing located (CA AG)Corroborated
Listed by ALPHV/BlackCat on a leak site · Jul 26, 2023US
Dental practice · US Other dental org · Leak-site claim
Claim reported
Listed by ALPHV/BlackCat on a leak site · Jun 12, 2023US
Dental practice · US Other dental org · Leak-site claim
Claim reported
Listed by ALPHV/BlackCat on a leak site · Jan 7, 2023AU
Dental practice · AU Other dental org · Leak-site claim · AU
Claim reported
Listed by ALPHV/BlackCat on a leak site · Mar 22, 2022US
Dental practice · US Other dental org · Leak-site claim
Claim reported
Dates shown are for the related public record. Leak-site metadata is credited per CC BY 4.0 where used. Group names are shown as text only: no logos, no rankings.