X5 E53 Thefts & hacking the vehicle

[X5-D-Sport]

I have learned that there is a simple way of entering our X5 machines & needing no key remote.

Locally, a bunch of E53's have been stolen, so I am keen to find out how this is done, so I can either bury modules, secure wiring, fit isolator switches etc.

Can some one private mail me if they know how I can protect the vehicle - PRIVATE MAIL ME PLEASE.
I really cannot risk losing my beloved X5.
cheers

Grant B