Police say the youth is accused of using phishing e-mails and credentials to access Calgary Board of Education servers and accessing corporate and personal information.
It's alleged to have happened between November 2014 and March 2015.
Local media outlets called police after the alleged hacker contacted them about the attack.
The boy is facing several charges, including personation and unlawfully altering data and obtaining a computer service.
He has been released on bail with conditions and his next court appearance is July 23.
The Calgary Board of Education took steps at the time to notify parents of the students who were affected.
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