Use strong passwords
Using sensible passwords is the classic when it comes to security. So we would like to mention it here again. Choose a complex password that is difficult to guess . Avoid generic words and use a mixture of letters, numbers and special characters, as well as upper and lower case.
Keep your operating system, WiFi-connected devices, and router up to date to close known security vulnerabilities. Incidentally, the vulnerabilities are only increasing over time, and you can think of it as a race between device manufacturer support and hackers. Most of the time, however, the hackers have the edge, and security updates only come in response to risks or damage that have arisen.
Firewall and security software
Invest in a good firewall and security software that can monitor your network. These tools can effectively detect and block suspicious activity.
Set up guest network
A separate network for guests can protect your main network from potential risks. Make sure it is well secured and monitored regularly. Would you provide guests with your regular WLAN password , they go with the stored access information to your WLAN network.
Use WPA3 encryption
Activate the latest encryption technology such as WPA3 on your router to protect data transmission in your protect network.
WPS (Wi-Fi Protected Setup) as a quick connection can be convenient because you don’t have to enter the usually very long WLAN password every time you connect a new device, but it also has known security problems. Better disable it if not needed.
Use network monitoring tools to regularly check what devices are connected to your network and spot suspicious activity.
Change the router’s default credentials
I had already mentioned this above, but I would like to point out again that most routers are supplied with standard user names and passwords. It is best to change these as soon as you set up the router.
Disable remote management
If you don’t need remote access to your router, disable this feature in your wireless router to reduce potential attack vectors.
Reduce transmit power
In the standard setting, your router is usually set to 100% of the possible transmission power. In principle, this is also quite good because you then have stable WLAN available throughout the house. However, if you live in a manageable 2-room apartment, for example, and your WLAN in the neighboring apartment has lost nothing, you can also reduce the transmission power of your WLAN router to perhaps 50% or even less. Your WLAN is then hardly visible further than the area where you need it, and you even save electricity. Because a router that runs with 100% transmission power all year round makes a few euros at the electricity prices that we have in Germany.
Use a VPN
A Virtual Private Network (VPN) encrypts the data sent over your network and protects your online activities from prying eyes.
Securing your WiFi network is by no means a sure-fire success, but requires a combination of technological solutions and conscious behavior. By implementing the above best practices, you can protect your network from most common attacks. Nothing in life is 100% safe, but what you can do you should do! It’s an ongoing task that requires attention and regular review, but the security and privacy of your personal information is well worth the effort.