Employment of good security practices when deployed. - check for [OWASP Top-10](https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project) & more - HTTPS by default - WAF - Some basic [PCI common-sense](https://en.wikipedia.org/wiki/Payment_Card_Industry_Data_Security_Standard) - even though no card data stored
Employment of good security practices when deployed.