The aftermarket tools(Autel, Launch, OTC and their rebrands through Snap-On/Mac/Matco) can access the anti-theft functions and in many cases do not need access codes/passwords from the OEM or registration with the OEM like FCA/Stellantis does in order for an aftermarket scan tool to interact with the security gateway.
Talking of Stellantis, I've now seen multiple videos of newish Alfa Romeo's being stolen. They're able to pop out the front radar sensor and using the plug in the back of the radar sensor, talk to the PCM and program a key.