Securing the Magento environment
Ensuring Backend security
Custom admin url
Recaptcha
ACL settings
Security patches
Locks environment parameters
Run security scan
References
https://experienceleague.adobe.com/en/docs/commerce-admin/systems/security/security-scan
Securing the codebase
Restrict the number of modules and vendors
Ensure custom development follows best practices
Be proactive with security threats
Control access to the environment via VPN
Firewall setup
Audit: OWASP Top 10