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Incident

Pinal County Superintendent's Office

Incident posture

Attack window
Sep 2023
Location
United States of America
Status
Historical
CIA posture
Available to members
Updated
2026-01-06 19:37

Linked entities

Victim
Pinal County Superintendent's Office
Threat actors
0 actors
Sources
3 sources

Timeline

Occurred
Sep 2023
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

A cyberattack targeting the Pinal County School Superintendent's Office compromised personal data, including names and Social Security Numbers, through an external system breach, impacting over 30,000 individuals. The incident disrupted payroll processing for multiple school districts, temporarily affecting employee payments, though services were later restored without further complications. While initial statements indicated no evidence of employee data exposure, subsequent investigations confirmed the breach, prompting written notifications and 24 months of credit monitoring and identity theft protection for affected individuals. Authorities continue to investigate the attack, with enhanced security measures implemented through a state-funded monitoring software grant for all affiliated districts.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

1 technique

Description

The Pinal County School Superintendent's Office experienced a cybersecurity incident impacting payroll systems and employee data across multiple school districts. Between September 25 and September 27, 2023, an external system breach occurred through hacking, compromising names and Social Security Numbers of 30,097 individuals, including 14 Maine residents. The breach was discovered on September 25, coinciding with immediate operational disruptions that delayed employee paychecks across Apache Junction, Casa Grande High School, Combs, Coolidge, Florence, Maricopa, Mary C. O'Brien, Oracle, Picacho, Sacaton, Santa Cruz, Stanfield, Superior, and Toltec school districts. By October 2, 2023, payroll services were fully restored with assurances of no further complications, though authorities continued investigating the incident. Despite initial statements on October 2 claiming "no indication of any employee data breach," subsequent notifications confirmed the compromise of sensitive personal information.

Legal representatives from Squire Patton Boggs notified affected individuals via written notices on November 22, 2023, offering 24 months of credit monitoring and identity theft insurance through Cyberscout, a TransUnion subsidiary. The Arizona Department of Homeland Security provided a grant for monitoring software across all 23 Pinal County school districts as a protective measure. No evidence suggested prior breaches within the preceding 12 months, and consumer reporting agencies were not notified due to the limited number of impacted Maine residents. The incident disrupted payroll operations for at least one week, directly affecting staff compensation timelines before resolution. Ongoing collaboration with law enforcement and cybersecurity providers formed the core of the organizational response, with no public disclosure of technical details regarding breach methods or infrastructure vulnerabilities.

Sources

Sources available to members: 3 sources.

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