Cyber Incident Victim: Bloomfield Hills High School
Date:
May 2018
Location:
United States of America
Summary
Two students at Bloomfield Hills High School breached the institution's student information system by exploiting a vulnerability, altering academic grades and attendance records while attempting to fraudulently refund lunch purchases. The intrusion was detected after an employee noticed system irregularities, prompting an investigation involving forensic experts who identified the perpetrators. School administrators addressed the breach by patching the vulnerability, initiating password resets for affected accounts, and collaborating with authorities to determine legal and disciplinary consequences, emphasizing the seriousness of cybercrime despite privacy limitations on disclosing specifics. Priority was placed on correcting grade modifications ahead of the semester's conclusion.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 2 motives | 1 technique |
| Threat Actor | Type | Location |
|---|---|---|
| 1 actor | Available to members | Available to members |
Description
In May 2018, Bloomfield Hills High School discovered a cybersecurity incident involving unauthorized access to its MISTAR Student Information System portal. Two students were identified as the primary suspects after exploiting a vulnerability in the system to alter academic records and financial transactions. The breach was detected when a school employee logged into their account and noticed irregularities, prompting an internal investigation. Forensic analysis revealed the students had modified grades, attendance records, and attempted to process lunch purchase refunds. To obscure their activities, they manipulated records for approximately 20 other students. Superintendent Robert Glass confirmed in a YouTube statement that forensic data experts assisted in tracing the actions back to the two individuals. The semester’s impending conclusion heightened concerns about the grade changes, which became the administration’s top priority for remediation.

School administrators responded by patching the exploited vulnerability and initiating password resets for all parental accounts associated with the system. They launched a comprehensive review of attendance records and lunch balance modifications while focusing resources on validating grade integrity. The district collaborated with legal authorities to address potential federal cybercrime charges, though student privacy laws prevented disclosure of specific disciplinary measures. Glass emphasized consequences would align with the Student Code of Conduct and legal statutes, describing the incident as a “hard lesson” for those involved. The school disseminated a popup notification on its website detailing the breach and published Glass’s YouTube video as a deterrent. Additional transparency measures included creating a dedicated FAQ page and engaging forensic investigators to support recovery efforts. No evidence suggested broader data theft or impacts beyond the manipulated records and attempted financial transactions.
