All Breaches
May 4, 2017 Verified Sensitive Record Entertainment / Simulation Game

Hollywood Stock Exchange (HSX) Data Breach - Verified

On May 18, 2017, the entertainment prediction market Hollywood Stock Exchange (HSX) (hsx.com) submitted a formal data breach notification to the California Department of Justice (Office of the Attorney General).

237.7 Thousand
Reported Records
3
Data Types
High
Severity
Oct 10, 2026
Last updated

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Exposed Data Types

3
  • Usernames
  • Passwords
  • Email addresses

About This Breach

In the official regulatory filing, HSX confirmed that unauthorized actors had gained access to user login credentials on or before May 4, 2017, prompting an immediate site-wide password reset. A corresponding credential dataset containing approximately 237,678 accounts with usernames, email addresses, and passwords was subsequently identified on threat forums. The breach is authoritatively verified via official regulatory filings.

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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