Why doesn’t every computer have a hardware based static ipv32 address, along with a private key to prove it is the sole owner of the address?
Why doesn’t every computer have a hardware based static ipv32 address, along with a private key to prove it is the sole owner of the address?
You can share SIMs between multiple phones quite easily, actually. You can also have entire call centers behind one single phone number. The only unique identifier for a handset carrying a particular call would be its IMEI (though multi SIM phones have multiple IMEIs) and even that is just a number that can be faked on some modems.
You can also trivially spoof your phone number in most countries through basic SIP configuration. Someone with basic knowledge of phone numbers can call you with your own number as the calling party and there’s very little you can do to stop them.
Not quite. IMEIs are unique to hardware. IMSIs are unique to SIMs
IMSIs are a bit weird since the introduction of 5G, to combat illegal IMSI catchers. The identifiers remain, but they’re not used directly anymore, like a MAC or IP address would be.
SIMs can be swapped between devices so I don’t really see them as device identifiers. I suppose SIMs are hardware too, unless you’re using eSIM.