McGraw-Hill Confirms Breach via Salesforce Misconfig

McGraw-Hill Confirms Breach via Salesforce Misconfig

Education giant McGraw-Hill has confirmed a data breach following an extortion attempt, as reported by BleepingComputer. The incident, which saw hackers gain access to internal data, stemmed from a misconfiguration within the company’s Salesforce environment. This isn’t just a garden-variety breach; it highlights a critical point: even major platforms like Salesforce can become attack vectors if not meticulously configured and maintained.

While the specifics of the accessed data haven’t been fully disclosed, the confirmation of an extortion threat strongly suggests sensitive information was compromised. This M.O. is becoming increasingly common, where initial data exfiltration is quickly followed by demands for payment to prevent public disclosure. It’s a stark reminder that even with robust security products, the human element of configuration and oversight remains a significant vulnerability.

What This Means For You

  • If your organization utilizes Salesforce, audit your configurations immediately for potential misconfigurations, especially around access controls and data exposure settings. This incident underscores the importance of continuous security posture management, even for cloud-based services.

Related ATT&CK Techniques

🛡️ Detection Rules

2 rules · 5 SIEM formats

2 auto-generated detection rules for this incident, mapped to MITRE ATT&CK. Available in Sigma, Splunk SPL, Sentinel KQL, Elastic Lucene, and QRadar AQL.

high data-breach event-type

Monitor Authentication from Breached Vendor — McGraw-Hill

Sigma Splunk SPL Sentinel KQL Elastic QRadar AQL

Get this rule in your SIEM's native format — copy, paste, detect. No manual conversion.

2 Sigma rules mapped to the ATT&CK techniques from this breach — pick your SIEM and get a ready-to-paste query.

Get Detection Rules →

Indicators of Compromise

IDTypeIndicator
McGraw-Hill-Data-Breach-2024 Misconfiguration Salesforce misconfiguration
McGraw-Hill-Data-Breach-2024 Information Disclosure McGraw-Hill internal data accessed

Related Posts

JanaWare Ransomware: Turkish Citizens in the Crosshairs

The cybercriminal landscape is a constantly shifting beast, and new ransomware strains are always emerging. According to The Record by Recorded Future, a new player...

threat-inteldata-breachgovernmentmalwareransomwareidentity
/MEDIUM

Microsoft Patches SharePoint Zero-Day, 160 Vulnerabilities

Microsoft's latest Patch Tuesday was a big one, addressing a staggering 161 vulnerabilities. According to SecurityWeek, this makes it the second-largest Patch Tuesday ever, based...

threat-intelvulnerabilitymicrosoft
/MEDIUM

Microsoft Drops Windows 10 Extended Security Update

Microsoft has rolled out the Windows 10 KB5082200 extended security update, a critical patch addressing vulnerabilities initially slated for the April 2026 Patch Tuesday. According...

threat-inteldata-breachmalwarevulnerabilitymicrosofttools
/HIGH