How to Secure Your Home Network

Acutis · plain-English network help · updated June 2026

The short answer

Securing a home network comes down to a handful of practical steps you can finish in an afternoon: turn on strong Wi-Fi encryption, set unique passwords for both Wi-Fi and the router itself, keep the firmware updated, switch off risky shortcuts like WPS, put smart-home gadgets on a guest network, and know which devices are actually connected. None of it requires technical expertise — just a login to your router's settings page. Here's the full checklist.

1. Use WPA3 (or WPA2) encryption

In your router's wireless settings, set the security mode to WPA3. If your router or older devices don't support it, use WPA2. Never use WEP or WPA (both are broken), and never run an open, password-free network. Encryption is what stops anyone within range from reading your traffic or jumping onto your Wi-Fi.

2. Set strong, unique passwords

You actually have two passwords to think about, and they should be different:

• Your Wi-Fi password. Use a long passphrase — several unrelated words are easy to type and hard to crack. Avoid your address, name, or phone number.
• Your router admin password. This is the login for the settings page itself. If it's still the default printed on the sticker, change it. Otherwise anyone who gets onto your network can take over the router.

3. Keep the firmware updated

Router firmware is software, and software gets security holes. Manufacturers patch them, but only if you install the updates. Check your router's settings for a "Firmware Update" option and apply any available update. If your router supports automatic updates, turn that on so you don't have to remember.

4. Disable WPS

WPS (Wi-Fi Protected Setup) is the "press a button to connect" shortcut. It's convenient, but its PIN method has well-known weaknesses that let attackers brute-force their way in. Unless you specifically need it, switch WPS off in your wireless settings — you'll just type the Wi-Fi password instead, which is safer.

5. Put IoT devices on a guest network

Smart bulbs, plugs, cameras, and other cheap gadgets are the weakest link in most homes — they rarely get updates and can be hijacked. Create a separate guest network and connect all your IoT devices to it. That way, if one is compromised, it can't reach your laptops, phones, or files on the main network. The guest network is also where actual guests should connect.

6. Choose a good DNS

Switching your DNS to a reputable provider can add a layer of safety, because some resolvers filter out known malicious and scam domains before you ever connect. It can also speed up browsing. You can set this in your router so every device benefits. (See what is DNS for the basics of how this works.)

7. Know what's connected

You can't secure what you can't see. Periodically review the list of devices on your network and make sure you recognize every one — an unfamiliar entry can be the first sign of trouble. Our guide on how to see what's connected to your network walks through the manual methods, and the MAC vendor lookup helps you identify a device by its maker.

A quick recap

• WPA3 or WPA2 encryption — never WEP or open
• Strong, unique Wi-Fi password and a separate router admin password
• Firmware kept up to date (automatic if possible)
• WPS turned off
• IoT gadgets and visitors on a guest network
• A trustworthy DNS provider
• Regular checks of what's actually connected