[Breach] Questel — 1,226,209 accounts exposed

Breached service: Questel Domain: questel.com Accounts exposed: 1,226,209 Breach date: 2026-08-01 Added to HIBP: 2026-09-01T04:49:35Z Data classes leaked: Email addresses, Employers, Job titles, Names, Phone numbers, Physical addresses, Support tickets Description: In August 2026, the French intellectual property software and services company Questel was the target of a ShinyHunters "pay or leak"