Charter Communications (Spectrum) Data Breach Confirmed After ShinyHunters Extortion Threat
Charter Communications, operating as Spectrum, confirmed a data breach on May 26, 2026, following threats from the ShinyHunters extortion group to leak stolen data.
Key points
- Disclosure confirmed on May 26, 2026.
- Attributed to ShinyHunters extortion group.
- Initial breach occurred around April 1, 2026, via vishing attack compromising a Microsoft Entra account.
Connected intelligence
Signal brief
Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.
Organization
- Published
- May 26, 2026
- Updated
- Jun 30, 2026
- Confidence
- Medium
- Evidence
- 3 sources
Structured assessment
Signal analysis
This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Threat source
Watch process controls, misconfiguration and accidental disclosure paths.
- Source type: possible insider or internal misuse
Business impact
- Impact area
- Confidentiality
- Likely asset
- User or customer data
Mentioned entities
Quick context
Questions about this signal
What happened in this signal?
Charter Communications, operating as Spectrum, confirmed a data breach on May 26, 2026, following threats from the ShinyHunters extortion group to leak stolen data. The breach, which occurred around April 1, 2026, involved a vishing attack that compromised an employee's Microsoft Entra account, granting access to Salesforce data. While Charter initially stated no sensitive personal information or CPNI was exfiltrated, later breach monitoring indicated the exposed dataset was tied to 4.9 million accounts, including names, email addresses, phone numbers, physical addresses, and job titles. Researchers later reported the leak covered at least 13 million people and nearly 10 million customer-support records.
When was this signal reported?
Shadow Tier lists May 26, 2026 as the signal date.
Which organization is connected to this signal?
Spectrum is the organization connected to this public signal.
Explore SpectrumWhich attack pattern is relevant?
This signal is connected to phishing and social-engineering intelligence based on its reported incident context.
Explore phishing and social-engineering intelligenceWhich impact area is relevant?
This signal is connected to data exposure and breach intelligence based on its reported consequences.
Explore data exposure and breach intelligenceRelated signals
Compare shared topics, actors and incident patterns before opening the full signal.
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