March 18, 2026, 3:02 p.m.
Key Considerations When Getting Penetration Testing Services
Cyber threats such as data breaches and ransomware attacks can cause businesses to suffer serious financial losses. The most secure way to protect information technology infrastructure from such attacks and business-level financial damages is through implementing regular penetration testing processes. So, what should be considered when getting penetration testing services? The ideal answers to this question await you in the continuation of our content.
What is Penetration Testing?
Penetration testing is a controlled attack simulation performed by a cybersecurity expert. The purpose of this simulation is to identify vulnerabilities that could be exploited by malicious individuals who may want to steal information or take over the entire system. Penetration tests not only discover vulnerabilities in the information technology infrastructure but also reveal how resistant the system is to real attacks.
Penetration tests can be conducted on the entire information technology infrastructure of an organization or focused on specific parts. In this context, simulations can be designed focusing on external networks, servers, web and mobile applications, and IoT devices. The results obtained after the simulation are analyzed and turned into a comprehensive report. The report provides recommendations on what changes can be made to security policies to close existing vulnerabilities.
What Should Be Considered Regarding Penetration Testing Services?
It is important to consider the criteria listed below when choosing among penetration testing firms.
Certification
Certification is the most important criterion to consider when selecting a cybersecurity firm to obtain penetration testing services. Having internationally recognized certifications provides an advantage for the firm that will provide the testing service.
To check the service provider's compliance with legal regulations and quality standards, you can first look at whether they have TSE approval. Because firms with TSE penetration testing authorization carry out the IT infrastructure audit process in full compliance with ethical and legal responsibilities.
References and Experience Level
Another issue as important as certification in selecting a penetration testing firm is references and experience level. The easiest way to gain information about a firm in terms of these two criteria is to examine their previous work. Having service experience in your sector makes it easier for both parties to understand each other in process management and to produce ideal solutions. When focusing on the experience level, the individuals who will perform the penetration test, especially the team leader, can also be evaluated individually.
Test Scope
Test scope is also among the criteria to consider when selecting a penetration testing firm. When determining the penetration test scope, targets are first defined. The main assets where simulations are performed during the testing process are internal and external networks. In addition to networks, penetration protocols can be applied to assets such as payment systems and user databases within the simulation scope. APIs and microservices, IoT devices are other assets that can be tested.
After targets are defined, it's time to determine which test type will be applied. In this context, black box testing allows attack simulation to be performed from the outside without any information about the system. Gray box testing provides partial information about certain parts of the system. White box testing involves a detailed system check by providing full access, including source codes.
It is important that the penetration test implementation is planned in a way that will not disrupt workflows.
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