riolas:
Payment Card Industry Data Security Standard. Known as PCI DSS.
Our site will have an official PFI report soon at the request of Visa and before they scan our site to ensure it passes their measures, I want to scan myself ahead of time to ensure it passes and doesn't contain any 'breaches'.
I have already scanned our hosting and found possible problems there which are being fixed now but I want to know how I scan our site for possible beaches too.
Thanks.
If you want your own scans done independently of what your Visa service is doing, then you'll need to hire your own scanning vendor to have them do the scan for you.
(Or you could set up your own separate server, configure it with professionally-purchased software that can do scans, learn how to do the scans, and then perform those scans. Then take the courses to study what the scan results mean and how to identify "real" issues vs "false positives". But all of that will cost you a lot more time and money than hiring someone who's already doing it professionally. I only mention it for the sake of thoroughness. I would say 99.9% of people would never dare take this on themselves unless it were part of their profession.)
So, yes, the simple and most accurate and appropriate answer to your question is: hire someone.