Ensuring the security of your Bitcoin marketplace is crucial to protect users and their funds. Implement multi-factor authentication, secure socket layer (SSL) encryption, and secure hosting services to safeguard user data. Use cold storage wallets for storing cryptocurrencies and employ robust monitoring and intrusion detection systems. Regularly update and patch software vulnerabilities and conduct thorough security audits. Additionally, educate users about best practices, such as enabling two-factor authentication and using strong passwords.
source: https://www.inoru.com/bitcoin-ordinals-marketplace-development