A customer would like to know in detail what costs penetration testing causes on the one hand, and what benefits penetration has on the other hand.

Also, what it effectively means to save costs through security.

The last point cannot be narrowed down by me exactly, therefore my question in this regard:

  • Can I offset the costs of security issues against errors that occur and need to be fixed?
  • Are there any calculations here?
  • 1
    I think this question needs more clarity of its context. It's very difficult for us to know what benefits and costs the service you provide can bring. If all your knowledge is from reading the Security Testing wikipedia page or if it comes from 30+ years of experience in the specific context of your client, then everything will be different. Nov 2, 2021 at 23:39
  • Surely it is not too unspecific to ask whether there is a calculation basis for a penetration test. Even the Wikipedia article does not agree on this. Moreover, it is not a good source on this topic. Since no one has a basis, one must either create it or try to get information like here in the example.
    – Mornon
    Nov 3, 2021 at 5:49

4 Answers 4


I've been involved in organizing penetration testing for my employer's software, and what I've experienced is that the quoted price depends on a combination of:

  • how big/complex the software is (usually approximated by how many pages in a web application)
  • how much time the penetration testers will need to work through the software

As a general guideline, if the penetration tester(s) will be working entirely through scanning the application with one of the standard tools and interpreting the results it will be less expensive than a mix of automated and manual security testing.

It's best to think of the costs of penetration testing as insurance: depending on the country your customer is in, fines for data breaches can be extremely significant (and can cause bankruptcy). By finding and fixing security holes, security testing helps to prevent data breaches. As such, it's not so much a question of how much prevention can save as whether the business can afford to go without it.


The total cost might depend on several factors, such as type of penetration test, scope, length, and the number of testers.


This company offers several types:


(I have no affiliation to the company, this is just an example)


The scope is directly proportional to cost, this is pretty obvious. More servers/locations need to be tested, more working hours to bill.

Length and number of testers

You could hire one tester for one day or multiple testers for multiple weeks/months.


It depends on the value of data or servers' downtime or ransom or whatever factor will hurt you the most.


The actual cost of penetration testing or security testing services depends on several factors like: Product size, Scope of testing, and type of methodology used for testing the product.

Below are a few factors that play a crucial role in determining the cost of penetration or security testing services for an application:

Scope of testing: For each penetration test, it has to follow an organization-defined scope for testing. That scope has a combination of Test case count, Platform, APIs, etc.

Methodology: The cost of penetration testing can fluctuate depending on the comprehensiveness of the test and methodology because each methodology has a different set of tests and areas to focus on.

Product size: Investment in penetration testing is completely dependent on the complexity and product scale. As scale depicts the number of accounts/records associated and complexity shows the type of services incorporated with the product.


Penetration security testing checks the ‘stamina level’ of your whole web system to explore vulnerabilities. In this type of testing it provides a comprehensive report of: tools, techniques, and Scope of improvements.

The cost of penetration testing depends upon below given parameters

Size: The cost of a penetration is directly depends on the scale and complexity of the organization. Complexity is determine by the complexity of applications, servers, IP address, facilities, and database that is involved.

Scope: The scope defines priority areas that needs to be tested in your application or network such as – the number of pages, APIs, test cases, network devices, etc

Methodology: Penetration testing price depends on the methodology and comprehensiveness of the test. Different methodologies having different areas to focus. Each methodology has a different set of tests, proficient tool or slower methodology produce a higher quality results.

Remote Testing: The cost of penetration testing is high for remote testing or onsite testing.

Professional Service: An established professional company charged high on the basis of their experience that provides you safety & privacy for your organization. https://www.qasource.com/security-testing-services

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