high severity April 15, 2026 · 1 min read

McGraw-Hill Education 45 Million Records — April 2026

If you are a customer of McGraw-Hill Education, here’s what’s now in circulation.

ShinyHunters claimed 45 million student, teacher, and parent records from McGraw-Hill Education in April 2026, with samples posted alongside a ransom deadline.

Stack of textbooks with red breach-warning band

ShinyHunters claimed 45 million student, teacher, and parent records from McGraw-Hill Education in April 2026, posting sample files alongside a ransom deadline. The exposed dataset includes names, contact details, and assessment-related metadata.

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Education-platform data has long-tail value because student records persist for decades. For young creators and student streamers using McGraw-Hill platforms, leaked educational records can be cross-referenced with their public gaming personas in harassment scenarios. Parents of esports-track students should consider this dataset broadly compromised and act accordingly.

What to do

What You Should Do

McGraw-Hill users: change passwords on all linked accounts
Treat unsolicited "your school account requires action" emails as suspicious
Parents: review your student's privacy posture across school portals
Use forwarding email aliases for any school-platform sign-ups going forward

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Were you a McGraw-Hill Education customer?

McGraw-Hill Education is one listing. Your email is probably in others.

~45 million accounts were exposed here. Check whether yours is one — and find every other leak tied to the same address, in about 15 seconds. No account, no card.

Report details & sourcing

Severity High contact details only, none of them permanent

Disclosed April 15, 2026

Last reviewed July 22, 2026

Affected ~45 million

Data exposed Student namesTeacher and parent contact detailsAssessment dataEmail addresses

By GalaxyWarden Threat Research · Editorial & sourcing standards

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Sources: McGraw-Hill statement and breach trackers (Apr–May 2026)

Related breaches

critical May 3, 2026