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🔓 BREACH BRIEF🟠 High🔓 Breach

McGraw‑Hill Data Exposure: 45 Million Salesforce Records Leaked via Cloud Misconfiguration

McGraw‑Hill confirmed that a misconfigured Salesforce environment exposed roughly 45 million records, with threat actors claiming to have accessed the data. The breach highlights SaaS configuration risk for education‑sector partners and underscores the need for rigorous third‑party risk controls.

🛡️ LiveThreat™ Intelligence · 📅 April 17, 2026· 📰 techrepublic.com
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Severity
High
🔓
Type
Breach
🎯
Confidence
High
🏢
Affected
3 sector(s)
Actions
3 recommended
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Source
techrepublic.com

McGraw‑Hill Data Exposure: 45 Million Salesforce Records Leaked via Cloud Misconfiguration

What Happened — McGraw‑Hill disclosed that a misconfigured Salesforce instance exposed roughly 45 million records. Threat actors publicly claimed to have harvested the data and posted excerpts online.

Why It Matters for TPRM

  • SaaS misconfigurations remain a top vector for large‑scale data exposure, underscoring the need for continuous vendor configuration monitoring.
  • The volume of records (tens of millions) amplifies reputational, regulatory, and downstream supply‑chain risk for any organization that integrates with McGraw‑Hill’s services.
  • Education‑sector data often includes personally identifiable information (PII) of students, educators, and alumni, triggering GDPR, FERPA, and state‑level privacy obligations.

Who Is Affected — Education publishers, K‑12 and higher‑education institutions, employees and customers whose data resides in the compromised CRM.

Recommended Actions

  • Review all third‑party SaaS contracts for configuration‑management clauses and audit rights.
  • Verify that your organization’s data sharing with McGraw‑Hill is limited to the minimum necessary and that data‑processing agreements address breach notification.
  • Conduct a focused security assessment of any integrated Salesforce APIs or data pipelines to ensure proper access controls and logging.

Technical Notes — The exposure stemmed from an insecure Salesforce object permission set that allowed unauthenticated read access to contact, account, and opportunity records. No known CVE was involved; the issue is classified as a cloud‑misconfiguration. Data types likely include names, email addresses, job titles, and possibly enrollment information. Source: TechRepublic Security

📰 Original Source
https://www.techrepublic.com/article/news-mcgraw-hill-salesforce-data-exposure-45m-records/

This LiveThreat Intelligence Brief is an independent analysis. Read the original reporting at the link above.

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