Theft of Cable services and Cable boxes added to my account without authorization

The main Cable box in my home is not listed on my account. There is also other devices logging onto my Cable Boxes. Also I only have three cable boxes but there have been as many as six additional cable boxes on my account without authorization. There is also two Main Boxes on my account. There is evidence that other devices is logging into my Cable Boxes. There is also a ground Cable wiring that is connected to my underground power line but the cable line is going into my next door neighbor home. They are stealing my Cable Services. I have attached several photo's of the unauthorized Cable Boxes on my account and the Cable wiring that is connected to my ground wiring but going into my next door neighbors home. There are unknown users connected to my Wifi Network even though it is private and after I have changed the password numerous times. The Internet settings on my account in  Security Mode was set at WPA2 and now it's at WPA3, so changes are being made to my account without authorization.