
Corporate Wi-Fi Passwords Stored in Plain Text on Every Connected Device
Many organizations continue to rely on a single shared password for corporate and guest Wi-Fi networks, creating long-term access risks after employees leave. On Windows systems, the netsh wlan show profile command reveals the password in clear text without requiring administrative rights. Linux distributions using NetworkManager store the PSK in readable files under /etc/NetworkManager/system-connections unless the keyring option is selected. macOS keeps passwords in the Keychain, which prompts for user confirmation before disclosure. The article explains why shared passwords cannot serve as effective access control and recommends WPA2/WPA3-Enterprise authentication or properly isolated guest networks instead. It also provides concrete commands for administrators to audit their own environments and highlights the consequences of infrequent password rotation.
HabrAug 31, 2026Translated from Russian