How to secure your Wi-Fi in 2026?
Nicolas,
A poorly secured Wi-Fi network is an open door to your internet connection and, by extension, to all the devices on your home network. In 2026, attacks on wireless networks remain frequent — from simple intrusions to enjoy your bandwidth to more sophisticated attacks aimed at intercepting your data. Here are the essential measures to effectively protect your Wi-Fi.
1. Choose the right encryption protocol
The encryption protocol of your Wi-Fi network is the first line of defence. There are several generations, with very different security levels:
| Protocol | Year | Security level | Recommendation |
|---|---|---|---|
| WEP | 1997 | Very weak | Avoid absolutely |
| WPA | 2003 | Weak | To be avoided |
| WPA2 | 2004 | Good | Acceptable if WPA3 unavailable |
| WPA3 | 2018 | Excellent | Recommended |
WPA3, standardised by the Wi-Fi Alliance, offers significantly better protection than WPA2, notably through protection against dictionary attacks and individual session encryption. If your router supports it, enable WPA3 as a priority.
Good to know: if your devices do not yet support WPA3, most modern routers offer a mixed WPA2/WPA3 mode that allows older devices to connect using WPA2 while offering WPA3 to compatible devices.
2. Use a strong Wi-Fi password
A weak Wi-Fi password can be cracked in minutes by a brute force or dictionary attack. A good Wi-Fi password should:
- Contain at least 12 characters, ideally 16 or more
- Mix uppercase, lowercase, numbers and special characters
- Not be a dictionary word, a name or a date of birth
- Be unique — not reused for other services
Avoid default passwords printed on your router label: they often follow predictable patterns and can be recovered by automated tools.
3. Change your network name (SSID)
The SSID is the visible name of your Wi-Fi network. By default, it often contains the manufacturer or operator name (e.g. "BT-Hub-XXXX", "Netgear-XXXX"), giving an attacker information about your router model and its known vulnerabilities.
- Choose a neutral SSID that reveals neither your name, address nor operator
- Avoid humorous SSIDs like "FBI_Surveillance_Van" — they attract attention
- Do not hide your SSID: hidden broadcast is not real protection and unnecessarily complicates connecting your devices
4. Disable WPS
WPS (Wi-Fi Protected Setup) allows connecting a device to your network by simply pressing a button or via an 8-digit PIN code. This convenient feature has a known security flaw: the WPS PIN can be cracked by brute force within a few hours.
Disable WPS in your router administration interface. Security outweighs convenience in this specific case.
5. Create a separate guest network
When visitors connect to your Wi-Fi, they potentially access the same network as your computers, NAS, printers and security cameras. A guest network creates an isolated zone giving them internet access without access to your personal devices.
- Enable the guest network in your router settings
- Use a different password from your main network
- Enable client isolation so guest network devices cannot communicate with each other
Good to know: connecting IoT devices (smart bulbs, thermostats, video doorbells) to the guest network is good practice. These devices are often less well secured and represent an attack vector on your main network.
6. Update your router firmware
Manufacturers regularly release firmware updates to fix security vulnerabilities. An unpatched router can remain vulnerable to exploits that have been known for months or even years.
- Regularly check for updates in your router administration interface
- Enable automatic updates if your router offers this option
- Consider replacing a router whose manufacturer no longer publishes updates
7. Change your router administration credentials
Your router administration interface is accessible from your local network, typically at 192.168.1.1 or 192.168.0.1. Default credentials (admin/admin, admin/password…) are publicly known and listed in online databases.
- Always change the default administration password
- Disable remote access to the administration interface from outside (WAN) if this option is enabled
8. Monitor devices connected to your network
Most modern router administration interfaces display the list of connected devices with their local IP address and MAC address. Check it regularly to detect any unknown device on your network.
Applications like Fing allow you to scan your local network and identify all connected devices with their manufacturer and operating system.
Good to know: an intruder connected to your Wi-Fi shares your public IP address for all their online activities. If that person commits illegal acts from your connection, it is your IP address that appears in the logs of the visited servers — which can have legal consequences for the subscriber.