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Choosing the right Application Security Testing Service Provider is not always an easy task. By asking the right questions and knowing what answers to look for, you can conduct the thorough evaluation of the various vendors available in the market and make the most intelligent choice for your business.There are numerous options like buying tools, using cloud based testing providers or the traditional consultants. I have discussed making the right choice in another blog. However, if you decide to choose Application Security Testing consultants, here are the 9 most important questions you should definitely ask based on the top metrics:
The background of the people behind the Application Security Testing is one of the most vital factors. Some companies do have good processes but still the individual plays the most important role. So ask for the background of the people conducting the Application Security Tests.
Though the person is very critical, the methodology of Application Security Testing plays an equally major role. If there is a standard process, it ensures minimal quality irrespective of the state of the mind of the consultant. You don’t want that his breakup with his girlfriend causing a significant reduction in the quality of testing. There should be checks and balances to ensure quality irrespective of the situation. Different organizations can have different methodology but you need to figure out from methodologies whether key elements like false positives and business logic vulnerabilities are covered.
3. How will he conduct business logic vulnerability testing?
Business Logic Vulnerabilities cannot be detected by scanners. You need very good processes and skills for theApplication Security Testing vendor to assess such vulnerabilities. It is important to know how the vendors shall conduct such testing.
Everybody can run a tool. But everybody is not a hacker. You have to fight against the hackers out there on the internet. So it is important that you get a person who matches up to that standard. You should ask him about his background in original security research. Did he do something which is worth being presented in Defcon, Blackhat or other similar conferences?
It is important to know the prior experience of the vendor in the field of application security testing. Did he conduct DAST, SAST, Architecture Review, Threat Modeling? You also need to check his experience in discovering Business Logic Vulnerabilities. This is one of the graveyards where many consultants fail unless they have proper experience.
Sometimes it might be critical to conduct test during non-business hours (nights/weekends). You need to select a Application Security Testing Vendor who is flexible enough to handle any such requirements that you may have.
8. Can the vendor meet up to your scalability requirements?
The last but not the least; if you have to test all your applications two times as per their respective release cycle or at least on a quarterly basis, will the vendor be able to meet such volume requirements. Do they have the infrastructure and the people to conduct such numbers of application security tests?
Few more suggestions by readers and community members Credits: Carlos Rodriguez, Milan Danrel