Charter Communications (Spectrum) Confirms Data Breach After ShinyHunters Threat
Charter Communications, operating as Spectrum, confirmed a data breach on May 26, 2026, after the ShinyHunters group threatened to leak stolen data. The breach, believed to have originated from a vishing attack compromising an employee's Microsoft Entra account, exposed approximately 4.9 million customer records, including names, email addresses, phone numbers, physical addresses, and job titles. ShinyHunters claimed to have stolen over 13 million customer records.
Signal context
First seen: May 26, 2026
Last updated: Jun 29, 2026
Status: Public signal
Key points
- Data breach confirmed on May 26, 2026.
- Threat actor: ShinyHunters.
- Origin: Vishing attack compromising an employee's Microsoft Entra account.
Signal analysis
BetaThis 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.
Sector: Information
Likely country: 🇨🇭 Switzerland
inferred from source domains
The feed marks multiple actor roles. Treat this as a review signal rather than a final attribution.
- Source type: outside the affected organization
- Source type: possible insider or internal misuse
Impact area: Confidentiality
Likely asset: User or customer data
- 25 signals in the same sector
- 88 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
Charter confirms data breach after ShinyHunters extortion threat - Bleeping Computerhttps://www.bleepingcomputer.com/news/security/charter-confirms-data-breach-after-shinyhunters-extortion-threat/Public source from bleepingcomputer.com.
ShinyHunters extorts Charter Communications after data breach | brief | SC Mediahttps://www.scmagazine.com/brief/shinyhunters-extorts-charter-communications-after-data-breachPublic source from scmagazine.com.
ShinyHunters Leaks Charter Communications Data, Potentially Impacting 5 Million Customershttps://securityaffairs.com/192907/uncategorized/shinyhunters-leaks-charter-communications-data-potentially-impacting-5-million-customers.htmlPublic source from securityaffairs.com.
Charter Communications Breach: ShinyHunters Uses Vishing to Compromise Microsoft Entra and Exfiltrate Salesforce CRM Data for 4.9 Million Accountshttps://techjackssolutions.com/weekly-security-intelligence-briefing-essential-guide-2026/Public source from techjackssolutions.com.
Data Breach Roundup (May 22 - 28, 2026)https://www.privacyguides.org/news/2026/05/29/data-breach-roundup-may-22-28-2026/Public source from privacyguides.org.
Biggest Cyber Attacks, Data Breaches, Ransomware Attacks of May 2026https://www.cybermanagementalliance.com/biggest-cyber-attacks-data-breaches-ransomware-attacks-may-2026/Public source from cybermanagementalliance.com.
Biggest Cyber Attacks, Data Breaches, Ransomware Attacks of May 2026https://www.cm-alliance.com/cybersecurity-blog/biggest-cyber-attacks-data-breaches-ransomware-attacks-of-may-2026Public source from cm-alliance.com.
List of Recent Data Breaches in 2026 - Bright Defensehttps://www.brightdefense.com/resources/recent-data-breaches/Public source from brightdefense.com.
Cybersecurity Week in Review: May 26, 2026 – June 1, 2026 - Senthorus Bloghttps://blog.senthorus.ch/posts/02_06_2026/?utm_source=feedlyPublic source from blog.senthorus.ch.
2026 Data Breaches: Cybersecurity Incidents Explained - PKWAREhttps://www.pkware.com/blog/2026-data-breachesPublic source from pkware.com.
Cybersecurity Week in Review: May 26, 2026 – June 1, 2026 - Senthorus Bloghttps://senthorus.com/blog/cybersecurity-week-in-review-may-26-2026-june-1-2026/Public source from senthorus.com.
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