BreachCensus

Threat groups

Ransomware and extortion groups run public “leak sites” where they list organisations they claim to have compromised, usually to pressure them into paying. Breach Census tracks 378 such groups and reproduces those claims below — a listing is a claim by a criminal group, not a confirmed fact.

Claims are reproduced as posted by the groups themselves, are frequently wrong or exaggerated, and are unverified. An organisation appearing under a group here has not been confirmed to have suffered a breach. Listed organisation? Contact [email protected].

GroupClaimsFirst claimLast claimStatus
qilin2,262Oct 8, 2022Sep 5, 2026Active
lockbit32,016Dec 26, 2021Dec 5, 2025Active
akira1,602Apr 12, 2023Sep 4, 2026Active
clop1,340Mar 13, 2020Aug 14, 2026Active
play1,308Nov 26, 2022Aug 31, 2026Active
lockbit21,002Sep 9, 2021Jun 28, 2022Active
incransom951Aug 6, 2023Sep 3, 2026Active
ransomhub841Mar 9, 2023Mar 31, 2025Active
thegentlemen816Feb 28, 2023Sep 5, 2026Active
alphv731Sep 9, 2021Mar 3, 2024Active
dragonforce648Oct 20, 2022Sep 4, 2026Active
bianlian552Jul 14, 2022Mar 31, 2025Active
safepay550Nov 10, 2023Aug 25, 2026Active
blackbasta525Apr 26, 2022Jan 11, 2025Active
medusa518Jan 11, 2023Feb 13, 2026Active
8base455Apr 3, 2022Feb 1, 2025Active
lynx417May 22, 2023Aug 29, 2026Active
everest396Sep 9, 2021Sep 4, 2026Active
lockbit5361Apr 17, 2023Sep 4, 2026Active
conti351Jul 31, 2020Jun 7, 2022Active
dispossessor344Feb 3, 2020Aug 11, 2024Active
nightspire324Feb 17, 2025Sep 1, 2026Active
pysa309Jul 1, 2020Sep 20, 2022Active
hunters307Sep 9, 2021May 27, 2025Active
killsec285Feb 21, 2024Aug 23, 2026Active
rhysida282Jun 5, 2023Sep 1, 2026Active
sinobi274Mar 24, 2025May 5, 2026Active
cactus248Jul 3, 2023Mar 17, 2025Active
royal211Nov 4, 2022Jul 19, 2023Active
hive208Aug 14, 2021Jan 16, 2023Active
ransomhouse207Jun 1, 2021Sep 2, 2026Active
coinbasecartel206May 26, 2023Aug 23, 2026Active
fog189Dec 20, 2021Mar 20, 2025Active
stormous188Mar 22, 2022Jun 28, 2026Active
vicesociety188May 31, 2021Jun 20, 2023Active
blacksuit184Jun 12, 2023May 29, 2025Active
devman184Jun 7, 2023Feb 3, 2026Active
babuk2180Feb 1, 2021Apr 6, 2025Active
nova178Mar 22, 2025Jul 25, 2026Active
handala175Apr 5, 2024Apr 7, 2026Active
worldleaks175Jun 23, 2022Jul 21, 2026Active
funksec172Apr 13, 2023Mar 18, 2025Active
malas170Apr 9, 2023Apr 9, 2023Active
cloak166Aug 24, 2023Jun 18, 2026Active
apt73157Apr 5, 2024Jul 24, 2026Active
shinyhunters156Apr 23, 2024Sep 4, 2026Active
spacebears156Apr 25, 2024Sep 5, 2026Active
SilentRansomGroup147Jun 7, 2022Sep 4, 2026Active
blackbyte147Oct 4, 2021Jul 30, 2025Active
avaddon146Feb 1, 2021Sep 9, 2021Active
meow145Sep 4, 2023Nov 19, 2024Active
snatch142Nov 29, 2021May 15, 2024Active
sarcoma141Jul 9, 2024Mar 30, 2026Active
krybit135Mar 30, 2026Sep 3, 2026Active
ragnarlocker128Apr 1, 2020Oct 11, 2023Active
noescape126Jun 7, 2023Nov 26, 2023Active
direwolf125Apr 17, 2025Sep 5, 2026Active
raworld125Apr 27, 2023Dec 28, 2024Active
interlock123Dec 1, 2023Aug 31, 2026Active
pear119Aug 18, 2023Sep 4, 2026Active
toufan117Dec 17, 2023Dec 27, 2023Active
genesis115May 7, 2024Aug 24, 2026Active
ElDorado112Oct 19, 2023Jan 22, 2025Active
payoutsking112Apr 17, 2025Sep 2, 2026Active
monti110Dec 7, 2022May 7, 2025Active
arcusmedia109May 8, 2024Aug 24, 2026Active
anubis107Feb 25, 2025Sep 2, 2026Active
Deadlock104May 22, 2026Sep 1, 2026Active
cuba103Feb 3, 2021Feb 1, 2024Active
kairos101Jun 26, 2024Sep 2, 2026Active
revil96Aug 26, 2019Nov 28, 2022Active
threeam92Aug 4, 2023Aug 30, 2026Active
abyss91Mar 21, 2023Aug 26, 2026Active
medusalocker90Nov 3, 2021Sep 2, 2026Active
ransomexx86May 14, 2020Jun 20, 2026Active
chaos85Feb 19, 2025Aug 28, 2026Active
BrainCipher78Jul 1, 2024Aug 31, 2026Active
lorenz78Jan 12, 2020Dec 1, 2023Active
warlock78Apr 2, 2025Nov 6, 2025Active
cicada330175Jun 4, 2024Sep 4, 2025Active
karakurt74Dec 11, 2022Sep 22, 2023Active
payload74Feb 17, 2026Aug 20, 2026Active
beast72Dec 19, 2023Aug 19, 2026Active
avoslocker70Jun 13, 2021Feb 11, 2023Active
quantum68Sep 9, 2021Dec 9, 2022Active
ransomed68Aug 21, 2023Oct 30, 2023Active
blacklock64Nov 27, 2023Jul 2, 2025Active
settra64Jun 2, 2026Aug 27, 2026Active
lv63Nov 22, 2021Nov 27, 2022Active
Orova60May 3, 2026Aug 31, 2026Active
flocker59Apr 25, 2024Jul 31, 2025Active
maze59Oct 21, 2019Sep 11, 2020Active
darkvault55Feb 8, 2024Jan 6, 2025Active
gunra54Apr 7, 2025Sep 4, 2026Active
losttrust53Sep 26, 2023Sep 26, 2023Active
AiLock51Apr 29, 2015Aug 26, 2026Active
insomnia50Feb 14, 2025Sep 3, 2026Active
Storm49Aug 3, 2026Sep 2, 2026Active
mallox49Nov 4, 2022Jul 14, 2024Active
tengu49Oct 23, 2025Mar 7, 2026Active
termite49May 11, 2023Aug 13, 2026Active
trigona49Apr 11, 2023Mar 30, 2024Active
knight48Sep 6, 2023Feb 12, 2024Active
nitrogen48Mar 29, 2023Jun 3, 2026Active
ryuk48Oct 4, 2018May 18, 2021Active
crypto2447Dec 13, 2023Aug 31, 2026Active
blacknevas45Apr 24, 2023Aug 13, 2026Active
Global Secret Group44Jan 17, 2026Sep 2, 2026Active
midas44Nov 29, 2021Apr 14, 2022Active
CMDOrganization43Jan 25, 2026Jul 31, 2026Active
blackshrantac43Sep 17, 2025Jan 16, 2026Active
donutleaks42Aug 24, 2022Jul 24, 2024Active
securotrop42Jun 11, 2025Aug 18, 2026Active
J41Feb 17, 2025Nov 1, 2025Active
ZaWoo40Jul 6, 2026Aug 31, 2026Active
embargo40Apr 17, 2024Jun 30, 2026Active
darkleakmarket39Sep 9, 2021May 25, 2022Active
dragonransomware39Oct 22, 2024Dec 16, 2024Active
aurora38Apr 17, 2026Sep 5, 2026Active
m3rx38Apr 29, 2026Aug 29, 2026Active
metaencryptor38Aug 16, 2023Aug 23, 2026Active
CRPxO37Jul 9, 2026Aug 2, 2026Active
ciphbit36Sep 14, 2023Feb 10, 2026Active
global36May 28, 2025Aug 26, 2026Active
helldown36Aug 5, 2024Nov 6, 2024Active
nokoyawa36Dec 9, 2022Aug 4, 2023Active
arvinclub35Sep 9, 2021Oct 15, 2023Active
moneymessage35Jan 4, 2023Aug 28, 2026Active
spook35Oct 4, 2021Oct 19, 2021Active
lamashtu34Apr 11, 2026Jun 17, 2026Active
dAn0n33Mar 26, 2024Aug 23, 2024Active
obscura33Jul 16, 2025Jan 11, 2026Active
wannacry33May 12, 2017Feb 23, 2018Active
Majinahanashi32Jun 27, 2026Sep 1, 2026Active
blackmatter32Sep 8, 2021Nov 4, 2021Active
marketo32Dec 7, 2021Feb 14, 2022Active
suncrypt32Aug 24, 2020Jun 18, 2022Active
alphalocker31Jan 24, 2024Feb 28, 2026Active
the gentlemen31Aug 26, 2026Sep 5, 2026Active
frag30Sep 24, 2024Jun 12, 2025Active
payloadbin29Sep 9, 2021Jan 6, 2022Active
L Group28Feb 17, 2025Aug 22, 2026Active
bravox28May 15, 2025Sep 1, 2026Active
onyx28Apr 29, 2022Nov 21, 2022Active
fulcrumsec26May 1, 2026Sep 1, 2026Active
kelvinsecurity26Apr 1, 2022May 24, 2022Active
netwalker26Jan 31, 2020Dec 12, 2020Active
underground26May 30, 2023Aug 15, 2025Active
werewolves26May 18, 2023Mar 4, 2024Active
Dark Project25Jun 8, 2026Aug 25, 2026Active
doppelpaymer25May 25, 2019Apr 10, 2021Active
kraken25Feb 12, 2024Nov 13, 2025Active
lapsus$25Dec 10, 2021Jun 23, 2026Active
vect25Oct 5, 2025Apr 15, 2026Active
radar24Jan 22, 2024Apr 29, 2026Active
titan24Apr 14, 2026Aug 20, 2026Active
morpheus23Jan 7, 2025Jul 30, 2026Active
unsafe22Dec 21, 2022Aug 28, 2026Active
AuditTeam21Feb 21, 2026Aug 27, 2026Active
daixin21Aug 3, 2022Sep 11, 2025Active
xinglocker21Apr 29, 2021Oct 26, 2021Active
hellcat20Oct 25, 2024Apr 7, 2025Active
kazu20Nov 6, 2025Sep 5, 2026Active
leaktheanalyst20Jan 1, 2022Mar 29, 2022Active
Panzer19Aug 5, 2026Sep 4, 2026Active
cephalus19Jun 28, 2025Aug 29, 2025Active
ralord19Mar 22, 2025Apr 27, 2025Active
siegedsec19Nov 26, 2023Dec 9, 2023Active
ShadowByt3$18Feb 17, 2026Aug 29, 2026Active
brotherhood18Apr 4, 2025Jan 6, 2026Active
d4rk4rmy18Jul 7, 2025Aug 16, 2025Active
leakeddata18Aug 27, 2026Sep 3, 2026Active
mountlocker18Feb 7, 2021Feb 8, 2022Active
trinity18Jun 6, 2024Mar 16, 2025Active
ALP-00117Mar 27, 2023Apr 8, 2026Active
DYSPHOR1A17Aug 20, 2026Sep 5, 2026Active
kawa409617Jun 19, 2025Jul 28, 2025Active
sabbath17Nov 22, 2021Feb 28, 2022Active
tridentlocker17Oct 21, 2025Sep 4, 2026Active
Booba Project16Jun 24, 2026Aug 24, 2026Active
apos16Apr 26, 2024Jun 24, 2025Active
coinbase cartel16Aug 26, 2026Aug 31, 2026Active
datacarry16Jun 26, 2024Dec 6, 2025Active
dunghill16Apr 10, 2023Jul 1, 2025Active
madliberator16May 27, 2024Oct 1, 2024Active
mosesstaff16Dec 18, 2021Dec 18, 2021Active
redransomware16Mar 5, 2024Jun 11, 2024Active
ExfilSquad15Jul 26, 2026Jul 26, 2026Active
azroteam15Sep 9, 2021Sep 9, 2021Active
cheers15May 29, 2022Sep 14, 2022Active
nefilim15May 5, 2020Sep 9, 2021Active
benzona14Nov 26, 2025Jan 30, 2026Active
freecivilian14Dec 31, 2022Dec 31, 2022Active
orion14Oct 28, 2025Jul 27, 2026Active
sparta14Sep 13, 2022Sep 22, 2022Active
weyhro14Dec 12, 2024Aug 10, 2025Active
argonauts13Sep 15, 2024Dec 16, 2024Active
groove13Sep 9, 2021Oct 30, 2021Active
mindware13May 5, 2022May 5, 2022Active
Black X12May 7, 2025Sep 1, 2026Active
Emperador12Aug 10, 2026Sep 5, 2026Active
IMNCrew12May 5, 2025Sep 16, 2025Active
Icarus12May 5, 2026Jun 23, 2026Active
Wallstreet12Jun 16, 2026Sep 3, 2026Active
blackout12Feb 26, 2024Jul 19, 2026Active
samsam12Mar 28, 2016Sep 28, 2018Active
teamxxx12Feb 17, 2025Aug 3, 2025Active
blackwater11Apr 17, 2026Aug 24, 2026Active
cryp70n1c0d311Dec 18, 2021Dec 18, 2021Active
icefire11Aug 20, 2022Aug 20, 2022Active
Doommageddon10Mar 8, 2026Aug 29, 2026Active
crazyhunter10Mar 5, 2025Mar 30, 2025Active
darkpower10Mar 11, 2023Mar 11, 2023Active
darkrace10May 30, 2023Jun 9, 2023Active
darkside10Aug 1, 2020May 13, 2021Active
LeakBazaar9Apr 13, 2026May 9, 2026Active
bitpaymer9Aug 25, 2017Nov 10, 2019Active
rook9Dec 7, 2021Jan 8, 2022Active
Barracuda8Aug 5, 2026Aug 23, 2026Active
Helix8Aug 7, 2026Aug 22, 2026Active
VanHelsing8Mar 12, 2025Apr 5, 2025Active
babuk8Oct 25, 2020Jul 27, 2021Active
brain cipher8Aug 31, 2026Aug 31, 2026Active
cryptbb8Apr 3, 2022Aug 16, 2023Active
cryptolocker8Nov 6, 2013Apr 28, 2019Active
inc ransom8Sep 2, 2026Sep 3, 2026Active
mogilevich8Feb 20, 2024Mar 1, 2024Active
qiulong8Apr 19, 2024Jun 24, 2024Active
radiant8Oct 12, 2025Oct 29, 2025Active
skira8Mar 6, 2025Nov 18, 2025Active
xpl0itrs8Jun 12, 2026Aug 20, 2026Active
0mega7Jul 14, 2022Jan 25, 2024Active
bert7Apr 4, 2025Jun 10, 2025Active
chort7Nov 17, 2024Nov 22, 2024Active
cyclops7Jun 29, 2023Jul 26, 2023Active
iah64777Aug 20, 2026Aug 29, 2026Active
karma7Oct 4, 2021Oct 4, 2021Active
malekteam7Dec 24, 2023Apr 5, 2024Active
pay2key7Dec 13, 2020Sep 9, 2021Active
Eclipse6Aug 14, 2026Sep 2, 2026Active
RunSomeWares6Jun 22, 2024Jul 10, 2025Active
Vexy Ransomware6Sep 2, 2026Sep 5, 2026Active
arkana6Mar 24, 2025Jun 6, 2025Active
cipherforce6Feb 23, 2026Feb 23, 2026Active
dataleak6Dec 2, 2022Dec 2, 2022Active
egregor6Oct 10, 2020Feb 8, 2021Active
netrunner6Apr 3, 2026Apr 3, 2026Active
rancoz6May 5, 2023Sep 3, 2023Active
redalert6Jul 14, 2022Sep 22, 2022Active
secp06Mar 14, 2025Apr 27, 2026Active
silent6Mar 27, 2025May 4, 2025Active
vexy6Sep 3, 2026Sep 6, 2026Active
yanluowang6Jul 2, 2022Aug 10, 2022Active
0day Syndicate5May 28, 2026May 29, 2026Active
Falcon5Jul 14, 2026Aug 31, 2026Active
GDLockerSec5Jan 24, 2025Jan 26, 2025Active
PrinzEugen5Feb 27, 2026Jun 4, 2026Active
ULose5Jun 9, 2026Jun 9, 2026Active
ValenciaLeaks5Sep 18, 2024Sep 18, 2024Active
atomsilo5Dec 21, 2021Feb 24, 2026Active
audit team5Aug 26, 2026Sep 4, 2026Active
bqtlock5Jul 31, 2025Oct 11, 2025Active
donex5Feb 22, 2024Feb 27, 2024Active
kryptos5Oct 8, 2025Nov 6, 2025Active
lockbit5Oct 21, 2020Aug 23, 2021Active
lockdata5Sep 9, 2021Sep 9, 2021Active
minteye5Dec 7, 2025Dec 12, 2025Active
ms130895Dec 18, 2025Aug 15, 2026Active
orca5Sep 16, 2024Apr 27, 2026Active
pandora5Mar 17, 2022Mar 30, 2022Active
projectrelic5Nov 11, 2022Dec 18, 2022Active
raznatovic5Dec 17, 2023Jan 7, 2024Active
Gammax4Jul 3, 2026Aug 6, 2026Active
Triple X4May 11, 2026Aug 4, 2026Active
blacktor4Dec 30, 2021Dec 30, 2021Active
cryptowall4Jun 5, 2014Feb 26, 2016Active
desolator4Aug 27, 2025Aug 31, 2025Active
exitium4Mar 17, 2026Apr 14, 2026Active
iah6474Aug 29, 2026Aug 29, 2026Active
linkc4Jan 29, 2025Feb 27, 2026Active
lockergoga4Jan 24, 2019Mar 22, 2019Active
ransomcortex4Jul 12, 2024Jul 12, 2024Active
satanlockv24Jul 4, 2025Jul 7, 2025Active
scarab4May 18, 2016Jun 1, 2018Active
shaoleaks4Nov 1, 2022Nov 1, 2022Active
space bears4Sep 4, 2026Sep 5, 2026Active
D1R3Jul 13, 2026Jul 13, 2026Active
Ethics3Sep 11, 2025Jun 9, 2026Active
Meowciety4033Aug 27, 2026Sep 2, 2026Active
TiMc3Apr 9, 2026Apr 9, 2026Active
blackshadow3Dec 18, 2021Dec 18, 2021Active
bluebox3Dec 2, 2024Dec 14, 2024Active
bonacigroup3Oct 4, 2021Dec 6, 2021Active
coldlock3Mar 19, 2020May 5, 2020Active
grief3May 26, 2021Jun 30, 2021Active
hellogookie3Apr 19, 2024Apr 19, 2024Active
locky3Mar 18, 2016Dec 12, 2016Active
mnt63Apr 30, 2026May 2, 2026Active
noname3Sep 11, 2023Sep 12, 2023Active
ragnarok3Mar 31, 2021Dec 30, 2021Active
rebornvc3Jul 8, 2025Jul 9, 2025Active
snake3May 4, 2020Jun 7, 2020Active
trisec3Feb 16, 2024Feb 19, 2024Active
vanirgroup3Jul 10, 2024Jul 10, 2024Active
vendetta3Feb 12, 2023Feb 27, 2023Active
yurei3Sep 5, 2025Sep 9, 2025Active
Blackfield2Jun 29, 2026Jul 3, 2026Active
BlueWhale2Aug 8, 2026Aug 10, 2026Active
Redact2Jun 28, 2026Jun 28, 2026Active
SenSayQ2Jun 4, 2024Jun 4, 2024Active
The Green Blood Group2Feb 4, 2026Feb 4, 2026Active
bitlocker2Mar 1, 2022May 2, 2022Active
cry02Mar 30, 2026Aug 6, 2026Active
cryptnet2Apr 19, 2023Apr 19, 2023Active
dharma2Dec 5, 2016Jun 1, 2020Active
kittykatkrew2Feb 23, 2026Feb 25, 2026Active
lunalock2Sep 2, 2025Sep 13, 2025Active
nightsky2Jan 4, 2022Jan 4, 2022Active
osiris2Dec 10, 2025Jan 9, 2026Active
prolock2Feb 23, 2020Apr 25, 2020Active
robbinhood2Apr 10, 2019May 7, 2019Active
sekhmet2May 30, 2020Jun 20, 2020Active
teslacrypt2Feb 22, 2016Mar 9, 2016Active
wastedlocker2Jul 23, 2020Oct 16, 2020Active
zerolockersec2Mar 25, 2025Mar 25, 2025Active
BlackLocks1Sep 1, 2026Sep 1, 2026Active
Loki1Mar 12, 2026Mar 12, 2026Active
NotPetya1Jan 1, 2017Jan 1, 2017Active
Sovcali1Aug 4, 2026Aug 4, 2026Active
abyss-data1Aug 26, 2026Aug 26, 2026Active
agelocker1Aug 30, 2020Aug 30, 2020Active
astroteam1Apr 5, 2021Apr 5, 2021Active
blogxx1Oct 12, 2022Oct 12, 2022Active
cerber1Jan 9, 2017Jan 9, 2017Active
cring1Jan 1, 2021Jan 1, 2021Active
crosslock1Apr 17, 2023Apr 17, 2023Active
cryptomix1Jan 15, 2017Jan 15, 2017Active
cryptoware1Jan 1, 2015Jan 1, 2015Active
deathkitty1Jul 22, 2021Jul 22, 2021Active
erebus1Jun 10, 2017Jun 10, 2017Active
gandcrab1Sep 9, 2018Sep 9, 2018Active
global31Sep 9, 2017Sep 9, 2017Active
goznym1Jan 1, 2015Jan 1, 2015Active
hades1Dec 15, 2020Dec 15, 2020Active
hddcryptor1Nov 25, 2016Nov 25, 2016Active
hermes1Jul 27, 2018Jul 27, 2018Active
insane1Jan 17, 2024Jan 17, 2024Active
keyholder1Apr 4, 2015Apr 4, 2015Active
kyber1Mar 18, 2026Mar 18, 2026Active
la_piovra1Jun 25, 2022Jun 25, 2022Active
leaknet1Sep 6, 2026Sep 6, 2026Active
lechiffre1Mar 1, 2016Mar 1, 2016Active
macaw1Oct 16, 2021Oct 16, 2021Active
mamba1May 7, 2020May 7, 2020Active
maui1May 1, 2021May 1, 2021Active
megacode1Mar 20, 2015Mar 20, 2015Active
memedusalockerdusa1Nov 15, 2022Nov 15, 2022Active
money message1Aug 28, 2026Aug 28, 2026Active
netflim1Nov 1, 2020Nov 1, 2020Active
networm1May 2, 2021May 2, 2021Active
nozelesn1Dec 17, 2018Dec 17, 2018Active
pewcrypt1Nov 1, 2018Nov 1, 2018Active
phoenixcryptolocker1Mar 21, 2021Mar 21, 2021Active
playboy1Oct 28, 2024Oct 28, 2024Active
ranstreet1Dec 21, 2023Dec 21, 2023Active
reynolds1Nov 13, 2025Nov 13, 2025Active
roadsweep1Jul 18, 2022Jul 18, 2022Active
robinhood1Dec 6, 2021Dec 6, 2021Active
ronggolawe1Feb 1, 2021Feb 1, 2021Active
samas1Feb 16, 2018Feb 16, 2018Active
sicarii1Jan 5, 2026Jan 5, 2026Active
slug1Jan 15, 2024Jan 15, 2024Active
synack1Mar 21, 2021Mar 21, 2021Active
thanos1Jul 1, 2020Jul 1, 2020Active
triplem1Mar 30, 2018Mar 30, 2018Active
walocker1Jun 10, 2025Jun 10, 2025Active
zeppelin1May 19, 2021May 19, 2021Active
zerotolerance1May 5, 2024May 5, 2024Active

Claim data from ransomware.live and RansomLook (CC BY 4.0).