A crack changes program code and is executed. There is no easy way to check if it is safe.
Unless you inspect the source code or binary code (directly or through reverse-engineering) you can not verify it.
What’s left without that is attempts at gaining confidence through analysis trust of third parties - the providers, distributors, creators - who have to be confirmed beyond a matching text label too.
The alternative to or extension of being confidently safe or accepting the risk is to sandbox the execution. Run the crack in a restricted environment with limited access in case it does things you do not want to. Optionally monitoring what it does. Which has to be put into relation of what the program does without the crack.
A crack changes program code and is executed. There is no easy way to check if it is safe.
Unless you inspect the source code or binary code (directly or through reverse-engineering) you can not verify it.
What’s left without that is attempts at gaining confidence through analysis trust of third parties - the providers, distributors, creators - who have to be confirmed beyond a matching text label too.
The alternative to or extension of being confidently safe or accepting the risk is to sandbox the execution. Run the crack in a restricted environment with limited access in case it does things you do not want to. Optionally monitoring what it does. Which has to be put into relation of what the program does without the crack.