The 2017 Edmodo Data Breach: What Happened and What Was Exposed?

Edmodo, a popular education platform widely used by teachers, students, and parents to collaborate and exchange resources, reported a major data breach in May 2017. The breach resulted in the exposure of over 77 million user records, making it one of the largest education-related breaches of its time. Attackers were able to obtain usernames, email addresses, and hashed versions of passwords. Notably, the stolen data surfaced on hacking forums not long after, where it became freely accessible. This incident highlighted the growing risks faced by online learning communities and affected users across schools and educational institutions worldwide.

Scope of the Edmodo Breach

The breach affected a reported 77,039,135 user records. Edmodo’s diverse user base meant that individuals from various roles within schools—students, teachers, and parents—were all caught up in the exposure. The educational nature of Edmodo brought additional attention due to the wide variety of data potentially connected to minors and educators.

What Data Was Compromised?

The compromised data included three main types of user information: email addresses, usernames, and password hashes created using bcrypt. While plaintext passwords were not exposed, the combination of account identifiers and protected passwords still posed risks, particularly if users reused credentials on other sites. The breach did not include personal details beyond these fields.

Timeline of Events

• Early May 2017: Attackers gained unauthorized access to Edmodo's user database.
• Shortly Afterward: The breach was identified and confirmed, though activity suggests information may have been circulating prior.
• May 2017: The stolen data was published on popular hacking forums, making the records freely available for download by anyone.

How Did the Breach Happen?

Exact technical details behind the attack were not made public, but the compromise likely stemmed from vulnerabilities in Edmodo’s user database or underlying application infrastructure. Once inside, the attackers were able to retrieve large volumes of user information and distribute them online with little delay.

FAQ

What happened in the Edmodo 2017 data breach?

In May 2017, Edmodo was breached by attackers who accessed and published 77 million records, including usernames, email addresses, and password hashes, mostly affecting educators, students, and parents.

How many users were affected in the Edmodo breach?

The breach affected 77,039,135 accounts, covering users from various backgrounds—students, teachers, and parents—across the Edmodo platform.

What user information was leaked in the Edmodo data breach?

The compromised data consisted of email addresses, usernames, and bcrypt-hashed passwords. No other personal or sensitive details were included in the breach.

Who was responsible for the Edmodo 2017 data breach?

The breach was carried out by unknown cyber actors who published the stolen records on hacking forums, making the information widely accessible.

How can I check if I'm in the Edmodo breach?

You can check if your information was part of the Edmodo breach by utilizing the DeHashed search engine.