---
schema_version: "secwatch.filing_event.v1"
accession: "0001023731-26-000084"
form_type: "8-K"
ticker: "EGHT"
cik: "0001023731"
company_name: "8X8 INC /DE/"
filed_at: "2026-06-23T21:10:41+00:00"
generated_at: "2026-06-23T21:12:28.710891+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# 8x8 discloses cyber breach via Klue Labs Salesforce integration; customer data exfiltrated

## Summary
- Unauthorized access occurred between June 11-12, 2026 via compromised Klue Labs integration with 8x8's Salesforce system.
- Exfiltrated data includes competitively sensitive customer info, contract details, sales notes, and contact information (names, addresses, phone, email).
- Company states incident isolated to Salesforce system; remediation steps taken, systems operational, no current impact on operations or financial condition.
- Investigation ongoing; regulatory authorities being notified; breach is reportable but not expected to materially affect financial results.

## SEC filing metadata
- accession: 0001023731-26-000084
- form_type: 8-K
- ticker: EGHT
- cik: 0001023731
- company_name: 8X8 INC /DE/
- filed_at: 2026-06-23T21:10:41+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.05
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1023731/000102373126000084/0001023731-26-000084-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1023731/000102373126000084/eght-20260617.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001023731-26-000084
- JSON: https://secwatch.observer/filing/0001023731-26-000084.json
- Plain text: https://secwatch.observer/filing/0001023731-26-000084.txt

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