In April 2018, the textbook rental service Chegg suffered a data breach that impacted 40 million subscribers. The exposed data included email addresses, usernames, names and passwords stored as unsalted MD5 hashes. The data was provided to HIBP by a source who requested it be attributed to “JimScott.Sec@protonmail.com”.
Accounts breached: 39721127
Breached on: April 28, 2018
Exposed data: Email addresses, Names, Passwords, and Usernames
Added on: August 16, 2019