Zcash (ZEC) is a cryptocurrency that focuses on privacy and anonymity. It was created to provide enhanced privacy features compared to other cryptocurrencies like Bitcoin.

As for the 15 advantages of Zcash, here are some key points:

1. Privacy: Zcash offers strong privacy protections by utilizing zero-knowledge proofs called zk-SNARKs.

2. Anonymity: Transactions made with Zcash can be shielded, ensuring the sender, recipient, and transaction amount remain confidential.

3. Selective disclosure: Zcash allows users to selectively disclose transaction details to comply with regulations or audits.

4. Security: Zcash uses advanced cryptographic techniques to ensure the security of transactions and user data.

5. Decentralization: Zcash operates on a decentralized network, making it resistant to censorship and control by any single entity.

6. Scalability: Zcash has implemented various improvements to enhance scalability and increase transaction throughput.

7. Global accessibility: Zcash can be accessed and used by anyone with an internet connection, regardless of geographical location.

8. Low fees: Zcash transactions typically have lower fees compared to traditional financial systems.

9. Fast transactions: Zcash transactions are processed quickly, allowing for near-instantaneous transfers of value.

10. Compatibility: Zcash is compatible with existing cryptocurrency infrastructure, wallets, and exchanges.

11. Community-driven development: Zcash has an active and passionate community that contributes to its ongoing development and improvement.

12. Auditability: Zcash's blockchain is transparent, allowing for audits and verification of transactions.

13. User control: Zcash gives users full control over their funds and financial privacy.

14. Innovation: Zcash continues to innovate and explore new technologies to enhance privacy and security.

15. Adoption: Zcash has gained significant adoption and is supported by various exchanges and platforms.

Please note that these advantages are based on general knowledge, and it's always recommended to conduct further research to fully understand the intricacies of Zcash.