Protected bootloader

Hi All
Is it still possible to obtain the chips with the protected bootloader and how much will they cost
And how do I go about getting one
I quite understand Dimitri's reasons for having to do this but I cannot build the project without one
Best Regards Mark
Is it still possible to obtain the chips with the protected bootloader and how much will they cost
And how do I go about getting one
I quite understand Dimitri's reasons for having to do this but I cannot build the project without one
Best Regards Mark