McGraw Hill - 13,500,136 breached accounts

McGraw Hill - 13,500,136 breached accounts

In April 2026, education company McGraw Hill confirmed a data breach following an extortion attempt. Attributed to a Salesforce misconfiguration, the company stated the incident exposed "a limited set of data from a webpage hosted by Salesforce on its platform". More than 100GB of data was later publicly distributed, containing 13.5M unique email addresses across multiple files, with additional fields such as name, physical address and phone number appearing inconsistently across some records. Use a password manager to generate and store strong, unique passwords for all your accounts. 1Password helps protect your data with industry-leading security. In Nederland adviseert een samenwerking van publieke en private organisaties mensen over hun online veiligheid op veiliginternetten.nl. If you haven’t already changed the password affected by this breach, do so immediately on every account wh

Source: https://haveibeenpwned.com/Breach/McGrawHill