McGrawHill
mheducation.com
About This Breach
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.
Data Exposed
Breach Details
| Breach Type | Data Breach |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | No reference available |
Frequently Asked Questions
When did the McGrawHill data breach happen?
McGrawHill was breached in Apr 2026. The breach was added to the XposedOrNot index on April 17, 2026.
How many records were exposed in the McGrawHill breach?
14,430,356 records were exposed, making it the #105 largest of the 763 breaches in our index.
What data was exposed in the McGrawHill breach?
The exposed data includes: mail addresses, Names, Physical addresses, Phone numbers.
What should I do if I was affected by the McGrawHill breach?
Change your password on the affected service (and anywhere you reused it), turn on two-factor authentication, and set up free breach alerts on XposedOrNot so you know the moment your email appears in a new breach.
More Education Breaches
What Should You Do?
Watch for Phishing Calls & SMS
Be cautious of unexpected calls or texts asking for personal information.
Beware of Scam Mail
Be skeptical of unexpected correspondence requesting personal details.
Monitor Your Accounts
Set up login alerts and review account activity regularly for suspicious access.