How can I protect my program from being copied by others

We have two products based on Nano Developer Kit and NX Developer Kit.
Current mass production mode, use dd command to copy to TF card.
How do I protect the program from others copying the TF card.

hello JackSUY,

you may check Secureboot and SecureOS to enable Jetson security.
FYI, Secureboot only supported with eMMC; SecureOS did not applies to Jetson Nano.

you may also refer to developer guide, please check Disk Encryption chapter for more details.

OK,I go to try。
Think you。