The hack involves millions of accounts for Edmodo, a platform used by educators throughout the world.
An email sent by the district Tuesday to parents and guardians said a small number of Fairfield teachers use Edmodo.
"The hack compromised student and teacher accounts by disclosing usernames and passwords for sale," the email said. "I have advised teachers who currently use the service to immediately change their passwords and their students passwords in the event the account was compromised."
The district has no specific indications or evidence that any of the Fairfield schools accounts were included in the hack, the email said. "There are only a small handful of teachers district wide that use the service."
Teachers, students and parents can use Edmodo to work on lesson plans, assign homework, and more. Edmodo says it has over 78 million members.
Click here for more information on the hack.
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