Public breachBreachXposedOrNot· 1 Apr 2026
McGrawHill
Domain: mheducation.com
What happened
McGraw Hill, an education company, confirmed a breach in April 2026 following an extortion attempt, with over 100GB of data later publicly distributed exposing 14.4M unique email addresses along with some names, physical addresses, and phone numbers.
Breach facts
- Records exposed
- 14,430,356
- Sensitive
- No
- Industry
- Education
- Data exposed
- mail addressesNamesPhysical addressesPhone numbers
This page summarises publicly reported breach metadata for awareness. For account recovery or incident response, use the official guidance from the affected service.
Breach data provided by XposedOrNot.