WLAN security
WLAN stands for wireless local area network. It is a wireless local network that is usually provided to the user via a central network access point (Wireless Access Point). Devices that have once connected to an unsecured WLAN access point will attempt to reconnect whenever the stored network name (the so-called SSID (service set identifier)) appears and neither encryption nor a password is required.
This also constitutes the danger in WLAN. Attackers can imitate the network name and actively prompt devices that have this name stored to connect. Once the devices have connected, the criminal has access to the connected device.
- Therefore, activate the WLAN interface for your smartphone, notebook, or tablet only when you need it.
- Do not connect to unknown WLAN access points.
- In public places (cafés, hotels), ask for the WLAN names to verify the authenticity of the displayed WLAN access points.
- Make sure the connection is password-protected.
- Use a VPN when connecting to public WLAN hotspots or use your device's mobile data connection.
- Use an anti-malware solution on your mobile device.
For your router, there are specific security measures you should take to avoid the risk of an attack on your home WLAN:
- Use of a current encryption standard (WPA3)
- Setting a secure password (do not use the manufacturer's default settings)
- Changing the factory-set SSID name
- Turning off WLAN devices that are not in use
- Performing regular updates
- Disabling remote access to the router
