{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-028925","form_type":"8-K","ticker":"FISI","cik":"0000862831","company_name":"FINANCIAL INSTITUTIONS INC","filed_at":"2024-03-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:27.078164+00:00","generated_at":"2026-06-05T00:15:42.747169+00:00","sec_items":["7.01"],"event_type":"other_material","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Financial Institutions, Inc. estimates up to $18.9M loss from customer deposit fraud","bullets":["Fraudulent deposit transactions occurred over several days ending early March 2024 by a single business customer.","Company currently estimates potential pre-tax exposure of up to $18.9M ($14.1M net of taxes).","Bank says incident is isolated to a single deposit-only business relationship; remains well-capitalized.","Bank is working with law enforcement and pursuing all available recovery to mitigate loss."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-028925","json":"https://secwatch.observer/filing/0000950170-24-028925.json","markdown":"https://secwatch.observer/filing/0000950170-24-028925.md","text":"https://secwatch.observer/filing/0000950170-24-028925.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/862831/000095017024028925/0000950170-24-028925-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/862831/000095017024028925/fisi-20240311.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-05T00:15:42.747169+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}