need top notch security that cant be hacked at our home/office

We are having someone hack into our network/wifi, they started with our ring cameras, so it was suggested that we get hardwired cameras so we now have the lorex system. they are getting into all systems, modifying the video, cuting out sound and altering the images. this has gone on for 2 months now and yesterday was the first time we caught a person on our property. we called geek squad the they suggested to use umbiquity router of our own with access points and motum and then have a specialist install and hook up everything. Looking for someone to help us with this and instruct what imbiquity products we need (they have a variety)