A Virtual Private Network (VPN) is a way of connecting to the internet that is much safer than using public wifi. In simple terms, a VPN uses an encrypted (unbreakable code) connection to connect your device to a different computer through the internet. This is a really important thing to do while in public if you can't use your 4G mobile data connection to access the internet, as a VPN keeps your data safe from cyber criminals. There are free VPNs, but these can steal your data and sell it on, meaning they can be passing your details to cyber criminals. You need to use a paid for service with a good reputation.

After getting a new router, change the password. Default admin passwords are publicly available, meaning anyone within proximity would be able to monitor your network's traffic.

Manufacturers release firmware updates that fix security vulnerabilities, implement new standards, and sometimes add features or improve the performance of your router. If you are prompted to update your router's software, make sure you allow it.