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Get filing alertsRisk Profile Improvements
- Third-Party Integration Vulnerability Exploited (new) — Attacker gained unauthorized access through a third-party application (Klue) connected to the company's core CRM system, exposing weaknesses in vendor security controls.
- Competitively Sensitive Customer Data Exfiltrated (new) — Contract details, sales opportunities, and customer contact information were extracted, creating potential competitive disadvantage and phishing risk for 8x8's customer base.
8x8 discloses cybersecurity breach exposing customer sales and contact data
Filed June 23, 2026 · Period ending June 17, 2026 · ~1 min read
Key Changes
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high
Unauthorized attacker exploited third-party Klue integration to access 8x8's Salesforce CRM on June 11-12, extracting customer contract details, sales opportunities, and business contact information.
Item 1.05 verify on EDGAR → -
high
Compromised data includes competitively sensitive information on current, former, and prospective customers: fragmented contract terms, sales team notes, names, business addresses, phone numbers, and email addresses.
Item 1.05 verify on EDGAR → -
medium
Investigation indicates breach was isolated to Salesforce data accessible through the Klue integration; the compromised integration has been disabled and unauthorized access removed.
Item 1.05 verify on EDGAR →
1 more material change behind this preview — plus the full narrative summary, section-by-section diffs against the prior filing, and verbatim quotes with EDGAR citations.
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Generated by AI · Jun 23, 2026 5:35 PM