high severity April 15, 2026 · 1 min read

McGraw-Hill Education 45 Million Records — April 2026

If you have an account with 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.

Caught in this breach?

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Deep Sweep shows you every leak tied to you and exactly what to change. Then it strips your name, address and family off the look-up sites that turn a leaked record into somebody knocking on your door — $29 one-time, includes 30 days of Protection. We write to 637 companies. No subscription to start.

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Not ready yet? Run a free breach check on this email

We’ll check it against 13.1B+ leaked records right now — no account needed. Continuous monitoring & alerts are part of Protection.

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. That’s what a Deep Sweep buys.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample637 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 breach. 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

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)

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