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44 disclosed this week · 26,355 on record

Edmodo

Disclosed Jun 1, 201743,423,561 accountsUnverified

In May 2017, the education platform Edmodo was hacked resulting in the exposure of 77 million records comprised of over 43 million unique customer email addresses. The data was consequently published to a popular hacking forum and made freely available. The records in the breach included usernames, email addresses and bcrypt hashes of passwords.

What is known

People affected43,423,561 (accounts in the leaked data, per Have I Been Pwned)
DisclosedJun 1, 2017
HappenedMay 11, 2017
AttackHacking
Data exposedEmailsPasswords
SectorTech
StatusUnverified: not yet confirmed by an official notice, a filing or the organization
Check your emailHave I Been Pwned

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

Everything about Edmodo