How safe is Zcash?

Could you elaborate on the security aspects of Zcash? As a cryptocurrency, it prides itself on privacy-enhancing features, but how robust are these measures against potential threats? Is there any concern about vulnerabilities in its cryptography or its implementation? What about the security of its network and its resilience to attacks? Also, given the nature of Zcash's privacy features, does it pose any additional risks or challenges for regulators or law enforcement agencies? I'd appreciate a detailed yet concise overview of Zcash's security posture and any potential concerns or limitations.