The FTC Consumer website has some great basic security information for the common person to secure their devices and networks.

https://www.consumer.ftc.gov/articles/0013-securing-your-wireless-network

These tips are probably the most important to stop the common scanners and hackers looking for weaknesses.

Home routers are always a major weakness since most are not configured properly by the owners, since it’s not really on their minds.

Check it out:

https://www.consumer.ftc.gov/articles/0013-securing-your-wireless-network