[Breach] Marcus & Millichap — 1,837,078 accounts exposed

Breached service: Marcus & Millichap Domain: marcusmillichap.com Accounts exposed: 1,837,078 Breach date: 2026-04-12 Added to HIBP: 2026-05-03T22:53:12Z Data classes leaked: Email addresses, Employers, Job titles, Names, Phone numbers, Physical addresses Description: In April 2026, the commercial real estate brokerage firm Marcus & Millichap was named as one of multiple alleged victims of the Shin