3 signs someone is stealing your Wi-Fi - and how to kick them off

**Executive summary:** This article outlines how to detect unauthorized devices on a home Wi‑Fi network (signs include slow speeds, unknown devices listed by the router, and unexpected disconnections), explains common causes of intrusion (weak/shared passwords, outdated encryption or firmware, brute-force attacks), and provides practical mitigation steps such as changing Wi‑Fi and admin passwords, upgrading to stronger encryption (WPA3 where possible), updating firmware, running network scans (Fing, Nmap), and using a guest network to isolate visitors.