2026 Nissan — Everest vendor breach; ~910GB dealership data (third-party; Apr publicity)
Data compromised
Dealership records; financial docs; internal reports
Technical writeup
The Everest ransomware group targeted a third-party vendor serving Nissan and Infiniti North American dealerships, claiming roughly 910 gigabytes of exfiltrated data including customer PII and loan records. Nissan affirmed a vendor compromise while stating its core systems were not breached; SC World and G/O Block summarized the April 2026 public leak threat after failed extortion. BreachHistory keeps victim numerators at zero until attested regulatory counts surface—treat 17M vehicle headlines as unverified marketing ceilings.
Root cause
Ransomware; Everest