---
schema_version: "secwatch.filing_event.v1"
accession: "0000034782-23-000114"
form_type: "8-K"
ticker: "SRCE"
cik: "0000034782"
company_name: "1ST SOURCE CORP"
filed_at: "2023-07-24T23:59:59+00:00"
generated_at: "2026-06-13T04:34:59.716293+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# 1st Source Corp reports MOVEit breach impacted 450,000 records; notifies state officials

## Summary
- Total estimated records impacted by MOVEit incident is 450,000, including all applicable state residents.
- Company has notified state attorneys general or designated officials as required by data security notification laws.
- Previously disclosed on July 10, 2023; unauthorized third party accessed sensitive data of commercial and individual clients.
- Company has eliminated the software vulnerability and is offering impacted clients monitoring and fraud detection services.

## SEC filing metadata
- accession: 0000034782-23-000114
- form_type: 8-K
- ticker: SRCE
- cik: 0000034782
- company_name: 1ST SOURCE CORP
- filed_at: 2023-07-24T23:59:59+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/34782/000003478223000114/0000034782-23-000114-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/34782/000003478223000114/source-20230724.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000034782-23-000114
- JSON: https://secwatch.observer/filing/0000034782-23-000114.json
- Plain text: https://secwatch.observer/filing/0000034782-23-000114.txt

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