Telecom breaches

129 breaches

WCWired CommunicationsBreach notice filed with the Indiana AG, details not stated.121 affectedUSJun 30KDDIHacking exposed emails and passwords.Hacking12M affectedJPUnverifiedJun 28PTPower & Telephone SupplyExposed names, Social Security numbers and government IDs. Reported to the Vermont AG.USJun 5Pay Tel CommunicationsPrison phone provider Pay Tel exposed IDs of over 300,000 callersExposed data1,717 affectedUSMay 28Charter CommunicationsCharter confirms breach as ShinyHunters claims 40 million customer recordsPhishing4.9M accountsUSUnverifiedMay 26CCColor CommunicationsBreach notice filed with the Indiana AG, details not stated.USMay 7EricssonVendor breach exposed names, addresses, Social Security numbers, government IDs, financial details, health records, dates of birth and payment cards. Reported to the California AG.Vendor breach16K affectedUSMar 9TBTAK BroadbandExposed Social Security numbers, government IDs, health records, insurance details, payment cards, financial details and names. Reported to the California AG.21K affectedUSFeb 19OdidoHacking exposed financial details, dates of birth, government IDs, emails, names, phone numbers and addresses.Hacking6.2M affectedNLFeb 12TWTotal WirelessExposed government IDs, dates of birth and names. Reported to the California AG.8,583 affectedUSJan 9BrightspeedExtortion exposed names, emails, phone numbers, addresses, financial details and payment cards.ExtortionUSUnverifiedJan 5Freedom MobileHacking exposed names, addresses, dates of birth and phone numbers.HackingCAUnverifiedDec 3, 2025WTWindow to the World CommunicationsBreach notice filed with the Indiana AG, details not stated.3,568 affectedUSNov 17, 2025ProteiSurveillance tech maker Protei hacked, data stolen and site defacedHackingJOUnverifiedNov 17, 2025EurofiberHacker exploits Eurofiber France ticket system to steal customer dataHacking10K accountsFRNov 17, 2025GSG&S Integrated Marketing Communications GroupBreach notice filed with the Indiana AG, details not stated.1 affectedUSOct 27, 2025Ribbon CommunicationsNation-state hackers lurked in telecom firm Ribbon's network for monthsHackingUSUnverifiedOct 23, 2025T-MobileBreach notice filed with the Indiana AG, details not stated.2 affectedUSAug 29, 2025Orange BelgiumHacking exposed names and phone numbers.Hacking850K affectedBEAug 20, 2025Colt Technology ServicesWarlock ransomware steals and auctions Colt customer filesRansomwareGBAug 14, 2025RCRitter CommunicationsBreach notice filed with the Indiana AG, details not stated.549 affectedUSAug 6, 2025Bouygues TelecomCyberattack exposes data of 6.4 million Bouygues Telecom accountsHacking6.4M affectedFRAug 6, 2025ICIES CommunicationsBreach notice filed with the Indiana AG, details not stated.6,241 affectedUSJul 3, 2025AMAdvanced Mobile NotaryBreach notice filed with the Vermont AG, details not stated.USMay 15, 2025CCCrain CommunicationsBreach notice filed with the Indiana AG, details not stated.5,057 affectedUSApr 25, 2025MTN GroupMTN says cyberattack exposed some customers' personal informationHackingZAApr 24, 2025SK TelecomSIM data of about 23 million SK Telecom customers stolen in hackHackingKRUnverifiedApr 22, 2025HTHome TelecomBreach notice filed with the Indiana AG, details not stated.41 affectedUSApr 14, 2025FCForum CommunicationsBreach notice filed with the Indiana AG, details not stated.29K affectedUSMar 14, 2025NTT CommunicationsHackers access order system data of 17,891 NTT Com corporate customersHacking18K affectedJPUnverifiedMar 5, 2025Orange RomaniaHacker leaks Orange Romania documents and 380,000 emailsHacking557K accountsROUnverifiedFeb 24, 2025TalkTalkVendor breach exposed names, emails, phone numbers and IP addresses.Vendor breachGBUnverifiedJan 25, 2025TelefonicaHacking exposed internal documents and emails.HackingESUnverifiedJan 10, 2025CVCopper Valley Telephone CooperativeBreach notice filed with the Indiana AG, details not stated.2,663 affectedUSJan 2, 2025SCShawnee CommunicationsBreach notice filed with the Indiana AG, details not stated.60 affectedUSNov 21, 2024UTUS telecom carriersChina's Salt Typhoon breaches US telecom networks and wiretap systemsHackingUSUnverifiedNov 13, 2024FreeAttack on Free management tool exposes subscriber data including IBANsHacking14M accountsFRUnverifiedOct 26, 2024WCWireless CommunicationsRansomware, data exposed not stated. Reported to the Indiana AG.Ransomware3,367 affectedUSOct 25, 2024ComcastVendor breach exposed names, addresses, Social Security numbers, dates of birth and financial details.Vendor breach238K affectedUSOct 4, 2024CCComcast Cable Communications LLC )Breach notice filed with the California AG, details not stated.USOct 3, 2024CCComNet CommunicationsBreach notice filed with the Indiana AG, details not stated.725 affectedUSAug 23, 2024SWSouth Western CommunicationsHacking exposed names and health records. Reported to the HHS archive.Hacking4,386 affectedUSJul 26, 2024CRClear Rate CommunicationsBreach notice filed with the Indiana AG, details not stated.640 affectedUSJul 12, 2024FCFrontier Communications ParentMaterial cybersecurity incident reported to the SEC (8-K Item 1.05)RansomwareUSApr 18, 2024Frontier CommunicationsCybercrime group steals personal data of 751,895 Frontier customersHacking752K affectedUSApr 18, 2024AT&TCall and text records of nearly all AT&T wireless customers stolen via SnowflakeCredential stuffing110M affectedUSMar 19, 2024NCNational Cable CommunicationsBreach notice filed with the Indiana AG, details not stated.2,869 affectedUSMar 15, 2024ANAmpersand - National Cable CommunicationsBreach notice filed with the Vermont AG, details not stated.USMar 15, 2024OVOrbus Visual CommunicationsBreach notice filed with the Indiana AG, details not stated.458 affectedUSFeb 16, 2024SCSuperior CommunicationsBreach notice filed with the California AG, details not stated.USFeb 15, 2024