First Interstate Bank
bd_e62791e550242982 · schema v1 · pii pii-v1
Full breach record for First Interstate Bank →2 incidents on fileFirst Interstate Bank notified customers of a business email compromise where a fraudster accessed a secured email sent to Matco Acoustics. The email contained sensitive signature card information including names, addresses, phone numbers, and Social Security numbers. No unauthorized use was known at the time of notification. Credit monitoring was offered.
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Incident timeline — partial
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Breach window unknown
Aug 28, 2023
Filed
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No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
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.