McGraw-Hill Confirms Data Breach Following Extortion Threat

2026-04-16

Following an extortion demand by the Shiny Hunters ransomware group, McGraw-Hill has confirmed that its Salesforce instance was compromised. McGraw-Hill claims that the stolen data was only a limited amount of non-sensitive data that did not include SSNs, financial information, or student data. In contrast, Shiny Hunters claim that the data includes 45M records which include PII.