Without knowing more about the "sophisticated anti-piracy system" employed by the app author, it's hard to determine if Google's claim of malicious behaviour is valid.
This could be something as simple as bytecode obfuscation, or something as complex as scraping every bit of personal information available through possibly-questionable means and sending to an insecure server. Copy protection schemes are notoriously user-hostile.
This could be something as simple as bytecode obfuscation, or something as complex as scraping every bit of personal information available through possibly-questionable means and sending to an insecure server. Copy protection schemes are notoriously user-hostile.