Apple keeps the Bluetooth channel 3 open and calling 24/7. You can’t turn it off. It’s supposedly for wireless mouses and keyboards to be able to grab on just in case yours fails and the house is on fire so super keyboard knows where to land and save the day..
anyway there aint a update or a firewall in the world gonna save you… a line of code is stored on a virtual volume and you can rub the color off of your drives in Recovery Mode, soon as you hit reboot, install or recover “Heres’s Johnny”
you our can take your modem, unplug it and throw it in the street. Disable every network configuration in SP (don’t forget that mother fu$@@ing Thunderbolt Bridge BS either) if some one next door stands too close to the wall and their cell phone (that’s probably logged in a thousand different cache locations) it will flip either your Bluetooth trigger or maybe the Infared Signal and activate a handshake that will tell your preferences to turn your oven off lol, no cut your WiFi back on and hide the process so it looks to you like everything is off but meanwhile it’s slowly configuring itself to never be caught in a situation where you throw the modem in the street and leave it lifeless again.
Nobody plays the the chess app, it’s a Trojan Horse (the wooden knight piece is the logo) it’s there to specifically watch your moves and prepare itself to counter. In as few moves as possible. Or use a program in the CONTENTS > RESOURCES folder called .suicide (I swear to god) and it’s there to drive the computer into the dirt when losing or help you do it… cause soon as you format the disk in Recovery mode it’s “Here’s Johnny” I mean “Welcome to macOS Language Chooser.. blah blah blah”