How to Find the Right Pentest Provider

How to Find the Right Pentest Provider

Finding the right penetration testing provider can be a real challenge, especially for organizations without deep IT security expertise. What requirements should you set? How do you recognize sufficient technical expertise? How can you identify unqualified providers? What distinguishes a strong reputation? And what should the documentation look like?

The following selection criteria and related questions will give you a solid foundation. By the end, you will know what to look for in a potential provider, how to compare your options, and how to make the best choice for your security needs. The German Federal Office for Information Security (BSI) provides additional guidance on conducting penetration tests.

If you are unsure how to compare pentest providers or what to look for, this guide is for you.

How Automated Is the Pentest?

Automated tools and scanners are the starting point of every pentest, but they often miss the bigger risks. The extent of manual testing is another straightforward way to identify potential quality issues with a given provider. A quality pentest will be largely a manual, in-depth process. Roughly 90% of the test should reflect manual work.

The pentester's experience will have a greater impact than the specific tools used. Scanners and other automated tools contribute relatively little to a thorough pentest. Discussing the tool focus can also lead into the next topic, which addresses methodology and the testing process in more detail.

If a provider indicates that most of the testing is automated or does not ask many questions about your environment, proceed with caution. Such security assessments can create a false sense of security — while actually introducing additional risk. Thorough, comprehensive pentests are manual, structured, and ultimately deliver the best results.

What Standards and Methodologies Are Used?

Every pentest requires a clearly defined methodology and must follow a structured process. This helps establish a proper workflow that minimizes confusion while maximizing both the security value and the quality of test results.

• The industry-standard methodology for web and API services as well as mobile apps is the OWASP Testing Guide.
• Additional standards for infrastructure pentests include OSSTMM, NIST, PTES, BSI, and ISSAF.
• The BSI methodology is required for compliance with IT-Grundschutz standards.
• PCI DSS defines the minimum standard for payment system data security.

Professional analysts always work according to structured processes and procedures. Make sure the pentest begins with a reconnaissance or information-gathering phase. This may seem like a minor detail, but proper reconnaissance is often overlooked — with the result that security vulnerabilities go undetected. Open and proactive communication is critical for identifying potential issues early. The pentest team should be available for direct contact whenever needed.

Ensure that the provider has established a clear, well-defined methodology that aligns with industry standards. Methodologies help define standards and workflows to align pentests with your scope, testing objectives, and expectations.

What Does the Documentation Process Look Like?

Pentest reports are essential for understanding where IT security risks and weaknesses exist in your environment. After the assessment is complete, these documents will also be shared with stakeholders who never interacted with the provider directly. Clear and thorough documentation is therefore critical.

In practice, this is more demanding than it sounds, as reports must meet the needs of very different audiences — from technical specialists to executive management. This range of requirements presents a particular challenge.

Reviewing sample reports will quickly reveal whether they meet your internal and external needs.

There is a wide range of reporting options for pentests, but certain elements should always be present:

• The Management Summary provides a high-level overview of the pentest engagement. It is aimed at management and presents findings in a non-technical format.
• The Vulnerability Overview is designed for both executives and technical staff. It should include a summarized remediation recommendation for each identified vulnerability.
• The Vulnerability Details are a risk-prioritized technical breakdown of findings based on the CVSS 3.0 standard. The analysis should also document how each vulnerability was exploited.
• Detailed Remediation Steps are part of every vulnerability description and should outline specific measures for resolving each issue.

Request a sample report from every potential provider. Reputable providers will always have samples available for each pentest type for your review.

Are Free Retests Included?

The goal of a pentest should not only be to assess the security of an application or infrastructure, but also to improve it. Whether the countermeasures you implement based on the final report have the desired effect can be evaluated in a subsequent validation phase.

During a retest, all vulnerabilities identified during the pentest are re-examined. The retest results are incorporated into the final report, which is then provided to you in an updated version. With such a report, you can also demonstrate to external stakeholders that your organization has taken appropriate countermeasures.

If a provider has established an efficient documentation process and documents identified vulnerabilities with proof-of-concept examples demonstrating how each vulnerability can be exploited, the additional effort for a retest is minimal. For this reason, retests are offered by many leading providers as a complimentary addition to a pentest.

If a provider charges you separately for this service, it typically indicates inefficient processes or poor cost planning.

A retest is an important part of any pentest engagement. The provider you choose should not charge you extra for this service.

Is There Expertise in Security Engineering?

The term Security Engineering refers to this specialized field of engineering. The U.S. Department of Defense defines it as an element of systems engineering that applies scientific and engineering principles to identify security vulnerabilities and to minimize or contain the risks associated with those vulnerabilities.

Identified vulnerabilities and the resulting security issues should be remediated in accordance with the recommended measures. Security Engineering bridges the gap between software development and IT security. Experienced Security Engineers can support you in the fast-paced development environment — both in remediating vulnerabilities identified during pentests and in implementing security-critical components during the development process itself.

Organizations without their own IT security department or Security Engineers can turn to experienced consultants when they encounter bottlenecks or difficulties in remediating vulnerabilities.

The ability of a pentest provider to not only identify vulnerabilities but also support their remediation should be an important factor in your selection. Learn more about Security Engineering.

Are Continuous Security Processes Offered?

Continuous security means that in modern development environments (DevOps, NoOps, etc.), security processes are not applied on a one-off basis but are firmly embedded in the software development and system integration lifecycle. Pentests are only snapshots in time and quickly become outdated with short-lived software artifacts. Automated security in the development environment does not deliver the same level of assurance as a full pentest, but it can provide a consistently adequate level of security over time.

Even when looking for a provider for manual pentests, you should inquire about their qualifications in automated security. This ensures that long-term collaboration is feasible and that deeper expertise exists. It also confirms that the provider stays current with the latest developments and can be engaged for future DevOps Security projects.

Solid expertise and offerings in the area of automated security are an excellent addition to a pentest provider's portfolio and should be considered during your evaluation.

Conclusion

Finding the right penetration testing provider may seem like a daunting task, but the questions above will give you clear guidance throughout the process. By asking these questions of every provider, you can make an informed decision — even without deep technical expertise.

Trust, technical expertise, staff qualifications, and reporting quality are among the most important factors when selecting a pentest provider. Beyond that, you should also consider the pricing structure, existing references, and industry experience in your evaluation.

Supplement the questions presented here with your own, and make sure you feel confident in the provider you choose. When it comes to IT security, there is no room for compromise.