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Keystone Tax Services Inc
bd_6efe7f3080edaf58 · schema v1 · pii pii-v1
Full breach record for Keystone Tax Services Inc →Keystone Tax Services, Inc. reported a data breach to the Delaware Attorney General. The breach occurred on 2023-08-28. It was discovered on 2023-08-28. Notice was filed on 2023-08-31. 1 Delaware residents were affected. 3 individuals affected in total.
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Incident timeline
discovery → filing · 3 days
Aug 28, 2023
Begins
Aug 28, 2023
Discovered
Aug 31, 2023
Filed
Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed3 affectedView incident
Evidence ladder
Leak-site claim
Attacker assertion only. Establishes: claim date, group, alleged victim.
Press / market report
Unlocks: incident narrative, operational impact. Still no compliance clock.
State AG / regulator filingThis record
Unlocks: discovery date, data types, affected count, compliance clock.
SEC 8-K / victim statement
Unlocks: materiality, stated response, full audit trail. Ceiling removed.