---
schema_version: "secwatch.filing_event.v1"
accession: "0000056978-24-000075"
form_type: "8-K/A"
ticker: "KLIC"
cik: "0000056978"
company_name: "KULICKE & SOFFA INDUSTRIES INC"
filed_at: "2024-06-12T23:59:59+00:00"
generated_at: "2026-06-01T04:56:17.105866+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Kulicke & Soffa discloses data exfiltration in May cyberattack; source code, PII taken

## Summary
- Unauthorized access on May 12, 2024; threat actor exfiltrated source code, engineering data, business partner data, and PII.
- Containment and isolation of affected servers same day with external cybersecurity experts; law enforcement involved.
- Company currently believes incident has not materially impacted operations or ability to meet fiscal Q3 2024 outlook.
- Investigation ongoing; full scope and nature of data accessed being assessed.

## SEC filing metadata
- accession: 0000056978-24-000075
- form_type: 8-K/A
- ticker: KLIC
- cik: 0000056978
- company_name: KULICKE & SOFFA INDUSTRIES INC
- filed_at: 2024-06-12T23:59:59+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/56978/000005697824000075/0000056978-24-000075-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/56978/000005697824000075/klic-20240528.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000056978-24-000075
- JSON: https://secwatch.observer/filing/0000056978-24-000075.json
- Plain text: https://secwatch.observer/filing/0000056978-24-000075.txt

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