Home broadband routers have often come with a set of default username/password combinations (even admin/admin). You can normally find the login information on the back of the router. The first thing to do is ensure you have the latest updates installed. These are often automatically installed but it’s worth checking. This can often be found under Settings > Firmware (or similar). The next thing is to change the password on the device as soon as you install it. Newer routers are starting to enforce a mandatory admin password change on first login but you still need to log in first.
If someone can gain access to your router then they can potentially control or observe your internet traffic and could use your connection to carry out crimes. I would recommend using your password manager to create a unique and string password for this. You don’t normally need to make any changes to this once it’s set up other than checking that periodically checking that updates are being applied (these are normally automatic).
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