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- Charter Communications confirmed a breach after ShinyHunters listed it on their leak site
- Hackers claim 40 million customer records were stolen via a vishing attack on April 1 2026
- Attackers allegedly accessed a Microsoft Entra account, pulled data from Salesforce, and exfiltrated customer names, emails, addresses, phone numbers, plan info, and support tickets
Charter Communications has confirmed to the media it suffered a data breach and that it was currently alerting the relevant authorities about the incident.
As one of the largest telecommunications and broadband providers in the United States, Charter offers internet, cable TV, mobile, and phone services to more than 40 US states. It currently has more than 32 million customers in the country.
Infamous ransomware actors ShinyHunters added Charter to their data leak site, claiming to have breached the company’s systems, and promising to leak the stolen data unless a ransom is paid.
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Responding to media inquiries, Charter told BleepingComputer it was “aware of the situation, following security protocols, and in the process of alerting appropriate authorities.
"No sensitive personal information (PI) or customer proprietary network information (CPNI) data was exfiltrated by the threat actor as a result of recent activity,” the company was cited saying.
At the same time, ShinyHunters claims to have nabbed 40 million records with personal information of both consumer and business customers. The group says that the attack took place on April 1 2026 through a voice phishing (vishing) scam, through which they obtained a Microsoft Entra account belonging to an employee.
Through the account, ShinyHunters’ operatives accessed Charter’s Salesforce instance and pulled everything they could from it, which allegedly includes customer names, email addresses, addresses, phone numbers, phone type, plan information, and some CPNI data. Customer support ticket data was also allegedly stolen.
Next to TeamPCP, ShinyHunters is currently the most active threat actor out there. The company is known for calling victim companies on the phone, pretending to be IT or customer support, and convincing their targets to either install malware themselves, or run remote desktop management solutions (RMM) and grant the attackers unabated access.
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