JavaCard OS

I have a question about the security of my applet. If changing GP key on my javacard, then nobody can remove or
copy my applet. Am I right?

removing applet is only possible if somebody knows the keys. copying is never possible even if you know the keys

rena2019 wrote:removing applet is only possible if somebody knows the keys. copying is never possible even if you know the keys

Many thanks, rena2019. If I set PIN code of javacard, will it improve my applet security? Or could you tell me the best way to increase security of my applet? Thanks