Quinton L. Hiebert CPA, PC
bd_7ad3ccebf9111f06 · schema v1 · pii pii-v1
Full breach record for Quinton L. Hiebert CPA, PC →Quinton L. Hiebert CPA, PC, an accounting firm in Mustang, OK, reported an external system breach (hacking) that occurred on July 4, 2025 and was discovered on August 19, 2025. A total of 937 individuals were affected, including 1 Maine resident. Written notifications were sent on March 20, 2026. Affected individuals were offered 12 months of Cyberscout credit/identity monitoring and theft restoration assistance.
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Incident timeline
Jul 4, 2025
Begins
Aug 19, 2025
Discovered
Mar 20, 2026
Filed
vs. sector median
+13 wks slower
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.