Madison Square Garden Sports Corp.
Retail & E-Commerce · ABD
Over 26 million records containing customer PII and other internal corporate data was compromised. This is a final warning to reach out by 15 June 2026 before we leak along with several annoying (digital) problems that'll come your way. Make the right decision, don't be the next headline. | Updated: 12 June 2026 | Warning: FINAL WARNING PAY OR LEAK
Data size
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Files
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Ransomware
Unknown
Corroboration in official records
Beyond the gang's leak site, the claim about this organisation also appears in these records:
- Have I Been PwnedOpen source
In June 2026, the sports and entertainment company Madison Square Garden Sports was the target of a ShinyHunters "pay or leak" extortion campaign . The group later published the alleged data, which included almost 10M unique email addresses spanning staff and customers, along with extensive personal, employment and customer relationship information.
DayBreach AI intelligence
Timeline
Record updated
Victim announced
Attacker
Shinyhunters
ShinyHunters is a financially motivated data-theft and extortion group active since 2020, responsible for high-profile breaches including Ticketmaster (via Snowflake) and PowerSchool; by 2025 they launched a RaaS offering called "shinysp1d3r," and in August 2025 French authorities arrested four members.