Every public data breach

44 disclosed this week · 26,355 on record

McGraw Hill

1 breach14M affected in allTechmheducation.com

Company profile
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Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages, the company profile.

source_type2026-09-25
McGraw Hill, 2026-04-14press
source_url2026-09-25
McGraw Hill, 2026-04-14https://www.bleepingcomputer.com/news/security/mcgraw-hill-confirms-data-breach-following-extortion-threat/
campaign2026-09-25
McGraw Hill, 2026-04-14salesforce-2026
country2026-09-25
McGraw Hill, 2026-04-14US
sector2026-09-25
McGraw Hill, 2026-04-14education
disclosed2026-09-25
McGraw Hill, 2026-04-142026-04-14
summary2026-09-25
McGraw Hill, 2026-04-14McGraw Hill confirmed unauthorized access tied to a Salesforce misconfiguration affecting multiple organizations, and ShinyHunters leaked over 100 GB. Have I Been Pwned counted 13.5 million accounts with names, addresses, phone numbers and
title2026-09-25
McGraw Hill, 2026-04-14McGraw Hill data from Salesforce misconfiguration leaked, 13.5M accounts
Added2026-09-25
McGraw Hill, 2026-04-14
Added2026-09-25
McGraw Hill