You cannot guarantee 100% security, but you can cross-check with best practices if you've done your best. A good source is the OWASP top 10 list of most frequen

You cannot guarantee 100% security, but you can cross-check with best practices if you've done your best. A good source is the OWASP top 10 list of most frequent security flaws: https://owasp.org/Top10/ https://owasp.org/Top10/