The ShinyHunters ransomware group listed McGraw Hill, Inc. (mheducation.com) on its data leak site on 2026-04-12. Country: US Sector: Education Domains named: mheducation.com Claim as published on the leak site: Over 45M Salesforce records containing PII data have been compromised. Pay or leak. This is a final warning to reach out by 14 Apr 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: 11 Apr 2026 | Warning: FINAL WARNING PAY OR LEAK