Can I secure my code from being copied on arduino boards?

liudr:
Wait until you see quantum computers They perform miracles with code cracking, or physicists say so, just to keep themselves well funded, LOL

Those with pockets deep enough to build a quantum computer will probably have enough funds to break into an ATmega and read the data. Or, kidnap the programmer and hold his family hostage till he coughs up the source code. At a certain level, security doesn't really matter.

Tim