689 different Brother printer models all use the serial number to create default password — ridiculous security flaw baked in from manufacturing, can't be fully remediated with firmware

Date: 2025-06-27 19:06:01

689 Brother printer models, along with some from a handful of other manufacturers, are vulnerable to a critical security vulnerability. The printer's default password is determined algorithmically at manufacturing and is reverse-engineerable, and is unfixable via firmware updates.