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Madison Square Garden Sports Data Breach

Understand what this public breach record reports and choose next steps based on the information involved.

Breach date: June 5, 20269,796,738 affected accounts in the record
01

What happened?

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.

02

When did it happen?

The breach date in the public record is June 5, 2026. The record was added to the catalogue on June 24, 2026 and last updated there on June 24, 2026.

03

What information was reported as exposed?

  • Customer service records
  • Email addresses
  • Names
  • Phone numbers
  • Physical addresses

These are incident-level categories. The record does not prove that every category was exposed for every affected person.

04

Who may be affected?

This record may be relevant to people who had an account or other relationship with Madison Square Garden Sports or used msgsports.com around June 5, 2026. A catalogue entry does not establish that every customer was affected or that every listed data category applied to each person. Compare the record with an official notice addressed to you.

05

What should you do?

Verify whether the notice applies to you

Compare the organization, dates, and information categories with any notice you received. Use contact details you independently confirm.

Protect identity information

Review your credit reports and consider a free credit freeze if identity information could support new-account fraud.

Expect targeted phishing

Treat unexpected breach follow-ups with caution. Do not use links or phone numbers in a suspicious message; contact the organization directly.

Choose actions that match the information involved. If you find signs that someone is using your identity, the Federal Trade Commission provides a personal recovery plan at IdentityTheft.gov.

Sources and review information

Page reviewed September 14, 2026 by the Data Breach Help Editorial Team. Catalogue details reflect the provider record and may change.