Wireless hygiene is the set of operational practices that keep radio systems predictable, limited in exposure, and harder to abuse. It includes using the right transmit power, disabling unused radios and service modes, choosing strong authentication and encryption, locking down management interfaces, and placing antennas or access points so signals do not extend farther than needed.
It matters because wireless links are observable from outside the physical perimeter. Poor hygiene can leave an attacker with a stronger signal than expected, default credentials, open pairing modes, or unnecessary broadcast information that helps reconnaissance. In attacks, this can support wardriving, interception, rogue access point setup, or unauthorized device pairing. In defense, good wireless hygiene reduces the attack surface, makes monitoring easier, and helps ensure that only intended users and devices can detect or join the network.