---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-020261"
form_type: "8-K"
ticker: "HFWA"
cik: "0001046025"
company_name: "HERITAGE FINANCIAL CORP /WA/"
filed_at: "2026-03-23T23:59:59+00:00"
generated_at: "2026-05-15T09:19:26.612740+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Heritage Financial detects cyber incident; files exfiltrated may contain personal info

## Summary
- Detected March 2, 2026; internal file share server compromised with exfiltration of files possibly containing personal information.
- Customer accounts, systems, and operations not affected; no disruption to business operations.
- Investigation ongoing with external forensic firm and legal counsel; regulators, law enforcement, and insurer notified.
- Company states incident not currently deemed material to financial condition or results of operations.
- Forward-looking statements warn impact may be more severe than currently anticipated.

## SEC filing metadata
- accession: 0001628280-26-020261
- form_type: 8-K
- ticker: HFWA
- cik: 0001046025
- company_name: HERITAGE FINANCIAL CORP /WA/
- filed_at: 2026-03-23T23:59:59+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1046025/000162828026020261/0001628280-26-020261-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1046025/000162828026020261/hfwa-20260320.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-020261
- JSON: https://secwatch.observer/filing/0001628280-26-020261.json
- Plain text: https://secwatch.observer/filing/0001628280-26-020261.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.