Change the router's default admin password, use WPA2 or WPA3 with a long WiFi password, keep the firmware updated, and give visitors a guest network instead of your main one.
Your home WiFi is the door to every phone, laptop and camera you own. A few small changes make it much harder for an outsider to use it or watch what is on it, and none of them needs special skills.
1. Change the router's admin password
Routers have two passwords: the WiFi password you give to guests, and an admin password that controls the router's settings. Many routers ship with a default admin login that is printed on a sticker or is easy to guess. Sign in to the router's settings page and change it to something long and unique.
2. Use a strong WiFi password and modern security
- Use a long password or passphrase, such as several unrelated words together, rather than a short word or a phone number.
- In the router's wireless settings, choose WPA3 if your devices support it, otherwise WPA2. Avoid open networks and the old WEP setting.
- Do not reuse a password from another account.
3. Turn off features you do not use
Some routers have a feature called WPS that lets devices connect with a button or a short PIN. It is convenient and less secure, so turn it off if you do not use it. Also switch off remote administration unless you have a reason to manage the router from outside your home.
4. Keep the firmware updated
Router makers release firmware updates to fix security weaknesses. If your router has not been updated in years, it may have known problems. Check the settings page for updates. Our article on firmware updates explains why this matters, and it is a quick job for a technician if you are not comfortable doing it yourself.
5. Use a guest network for visitors
Most routers can create a separate guest network. Give visitors that one instead of your main password, so they never get onto the network where your computers and files live. Smart-home gadgets and cameras also do well on a separate network.
6. Check who is connected
The router's settings page usually lists connected devices. If you see something you do not recognise, change the WiFi password. Then everyone, including you, needs to reconnect with the new password.
7. Keep your devices updated
A secure router does not help if a phone or laptop has old software. Install updates on your devices too.
Frequently asked questions
Is hiding my WiFi name a good security measure?
Not really. It is easy to find hidden networks, and it can make connecting harder. A strong password and modern security matter far more.
How often should I change my WiFi password?
There is no fixed schedule. Change it if you think someone has it who should not, or if you find unknown devices connected. A long, unique password does not need constant changing.
Can someone use my WiFi without me knowing?
If your password is weak or shared widely, yes. Check the list of connected devices in the router, and change the password if you see unknown ones.
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