The Federal Bureau of Investigation has been called in to investigate a private tutor allegedly involved in assisting pupils hack into their teacher's computers in order to change their grades.
Eleven pupils from Corona Del Mar High School in Newport Beach, California, were expelled after being accused of installing keyloggers onto their teacher's computers to gain remote access.
Newport Beach police have since asked the FBI to assist them with investigating private tutor Timothy Lance Lai, allegedly the mastermind behind the cheating scandal.
"The Newport Beach Police Department is currently seeking to interview the alleged private tutor for his involvement in the incident," a statement from the school read.
"The District is currently involved in an intensive audit of all CdM teachers' grade books so that we can ensure the integrity and accuracy of all posted grades.
"The District has also taken preventative measures and is implementing a new notification system districtwide to flag grade changes."
It is understood that Lai gained access to staff computers by visiting the school late at night and installing the keyloggers, which were then able to reveal login names and passwords.
"The District will continue to partner with Corona del Mar High School administration and staff to ensure that the rigor and educational excellence demonstrated by CdM's graduates for decades is not tarnished," the school said.
" Despite needing some time to wrestle with the disappointment of this unfortunate incident, we are confident that the school community will rise above this event."