Skip to content

Telecom breaches

128 breaches, most recently disclosed first. The list grows as new ones are disclosed.

OrganizationAffected
Verizon CommunicationsFeb 5, 20242 years ago63K
HathwayData allegedly from Indian ISP Hathway leaks with 4.7 million emailsJan 12, 20242 years agoHackingUnverified4.7Macct
Comcast XfinityCitrixBleed exploit exposes data of about 36 million Xfinity customersDec 18, 20232 years agoHacking36M
Comcast Cable Communications - XfinityDec 18, 20232 years agoUnknown
Comcast Cable CommunicationsDec 18, 20232 years agoHacking238K
Comcast Cable AddendumDec 18, 20232 years agoUnknown
Broadband Telecom PowerOct 20, 20232 years ago318
Lyca MobileCyberattack disrupts Lyca Mobile network and exposes customer dataOct 4, 20232 years agoHackingUnverifiedUnknown
Nuance Communications, Inc., o/b/o certain data controllersSep 15, 20233 years agoHackingUnknown
AT&TDark web data set covers 73 million current and former AT&T account holdersJul 13, 20233 years ago73M
Optical CableJul 5, 20233 years agoUnknown
Cleo Communications USApr 14, 20233 years ago644
Woodward CommunicationsApr 5, 20233 years ago12K
DISH NetworkRansomware attack on Dish exposes data of nearly 300,000 employees and othersFeb 28, 20233 years agoRansomware297K
TracFone WirelessFeb 3, 20233 years ago107
Pulaski White Rural Telephone co opJan 30, 20233 years ago31
T-Mobile USAJan 19, 20233 years agoHackingUnknown
T-MobileAbused API leaks account data of 37 million T-Mobile customersJan 19, 20233 years agoHacking37M
Meriplex CommunicationsJan 9, 20233 years ago3,663
BrightspeedDec 8, 20223 years ago4
OptusCyberattack exposes ID and contact data of about 9.5 million AustraliansSep 22, 20224 years agoHacking9.5M
Newcourse CommunicationsAug 18, 20224 years agoHacking48K
TwilioSMS phishing of employees gives 0ktapus hackers access to Twilio customer dataAug 7, 20224 years agoPhishingUnknown
Mainstream Fiber NetworksAug 4, 20224 years ago197
La Poste MobileJul 14, 20224 years agoRansomwareUnverified534Kacct
Frontier CommunicationsMay 4, 20224 years ago297
Centurylink CommunicationsApr 21, 20224 years ago119
Farmers Telephone CooperativeJan 28, 20224 years ago8,099
Sierra WirelessOct 22, 20214 years ago2,608
T-Mobile USAAug 24, 20215 years agoHackingUnknown
SAC WirelessAug 20, 20215 years ago6,459
SPM Marketing & CommunicationsJul 28, 20215 years ago14
Colton TelephoneJul 20, 20215 years agoUnknown
Telephone and Data SystemsJun 24, 20215 years ago99
SingtelSingtel customer data stolen through Accellion file sharing systemFeb 11, 20215 years agoSupply chainUnverifiedUnknown
Communications Workers of AmericaJan 22, 20215 years ago15K
WillScot Mobile Mini HoldingsNov 19, 20205 years ago3,639
Assist WirelessOct 12, 20205 years ago12K
T-MobileCyberattack steals data of tens of millions of T-Mobile customers and applicantsOct 9, 20205 years agoHacking54M
Prime CommunicationsMay 18, 20206 years ago8,001
Impact Mobile Home CommunitiesMay 5, 20206 years ago15K
Communications & Power IndustriesApr 20, 20206 years ago958
T-Mobile USAMar 10, 20206 years ago1,027
Entercom CommunicationsMar 9, 20206 years agoLost or stolen deviceUnknown
NTCA - The Rural Broadband AssociationAug 23, 20197 years ago25K
Cable OneAug 8, 20197 years ago7,375
Mediant CommunicationsMay 28, 20197 years agoHacking205K
Cable Hill PartnersMay 15, 20188 years ago989
US Green FiberApr 2, 20188 years ago816
TrueNet Communications, Inc. 7666Blanding BlvdFeb 7, 20188 years agoUnknown

New breaches by email

Wednesdays, only in weeks with newly disclosed breaches, the largest first.

Double opt-in. Unsubscribe any time.