Penetration Test (PENTEST)

A penetration test is a controlled, simulated attack carried out by experts to evaluate the security of a system's information infrastructure, revealing exploitable weaknesses before a malicious actor can find and abuse them.

The possibility of an unauthorized person accessing system features and data, causing damage is evaluated under the leadership of our 32 years of experienced team leaders with a particular methodology for that system with physical penetration tests, social engineering penetration tests, wifi penetration tests, network penetration tests, software and application penetration tests, mobile device penetration tests, server penetration tests, network device penetration tests of the target systems authorized by our customers.

Because systems are constantly changing, with new authorized identities being added, old authorizations being revoked, and fresh hardware and software being introduced, penetration tests should be repeated at regular intervals. Routine testing keeps protection aligned with the system as it actually is today, not as it was months ago, and helps achieve the maximum possible level of security.

In addition, the GDPR data-storage processes within our customers' systems are reviewed and reported in detail, in line with the assessments of our in-house GDPR experts, so that compliance gaps are identified alongside technical vulnerabilities.

Penetration tests can be carried out using three different methods:

Black Box Method:In tests carried out with this method, the tester is given only the information available to an outside attacker under the company contract, and the harm a hacker could cause is analyzed through realistic attack simulations that begin from zero inside knowledge.

Gray Box Method: In tests carried out with this method, the tester works with limited information shared under the company contract in addition to what can be discovered independently. This makes it possible to analyze both the uncontrolled activities of insiders who already hold certain authorizations and access rights, and the paths an outsider without any permission could use to gain access.

White Box Method: In the test carried out with this method, system and background information is shared together with the details obtained through the company contract, so the tester can analyze how a person who already has control over the system could reach unauthorized areas and cause harm. This is the most thorough approach and requires the most extensive coordination and time, but it leaves the fewest blind spots.

There are two types of target access locations from which a penetration test can be carried out, and a complete assessment usually combines both.

Internal Penetration Test, is the test carried out over the local networks and internal systems of the relevant target, simulating an attacker who has already gained a foothold inside the organization, such as a malicious insider or a compromised device.

External Penetration Test, is the test carried out against the target's internet-facing assets, such as its website, servers, and applications, simulating an attacker operating entirely from the outside with no prior access.

Physical Penetration Test

In this test, our team physically attempts unauthorized access to the targeted systems within a planned time window, coordinated with authorized administrators. When physical environments are left unprotected against physical penetration, they become an open door to a wide range of digital attacks, since an intruder who can reach a device, port, or cabinet can often bypass even the strongest software defenses. These tests are conducted under careful planning, using equipment and techniques recognized as standard around the world.

Social Engineering Penetration Test

These tests measure how easily information or actions can be obtained from authorized people by exploiting human factors. Within a planned time window and in coordination with authorized counterparts, our team uses computer-based, in-person, and phishing techniques to reveal where awareness training and internal procedures need to be strengthened, because even the best technology can be undone by a single convincing message.

Wireless Network Penetration Test

Wi-Fi systems are extremely popular for their speed and ease of installation, but they communicate over radio frequencies that anyone within range can detect. Although new Wi-Fi standards are released every couple of years to close security gaps, users remain responsible for keeping the systems under their control properly configured and up to date. DEF24 tests the actions of those attempting to penetrate the internal network and to seize control over the licensed equipment, then delivers a clear security report with concrete steps to harden every access point.

Network Penetration Test

Given that virtually every kind of data travels through information channels, and that these channels are built on networks, the importance of network security is hard to overstate. With a network penetration test, unauthorized access using certain internal information is tested from the inside using tools and programs designed specifically for our customers' systems, while additional tests are run from the outside exactly as a hacker would, producing the most comprehensive assessment possible. DEF24 recommends that our customers request network penetration testing at regular intervals, so that newly introduced devices and configuration changes never become a silent point of entry.

Software and Application Penetration Test

Websites and applications designed by our customers within the scope of software activities can be attacked from the outside, exposing many elements such as customer data, financial data, and personal data, and inflicting lasting damage on corporate image. System designers and programmers cannot reasonably be expected to know security vulnerabilities the way cybersecurity experts do, since their focus is functionality rather than adversarial misuse. DEF24 carries out the software and application penetration tests of your systems with specialized methods, drawing on 32 years of experience and a professional team that knows exactly where attackers look first.

Mobile Device Penetration Test

Devices that run their own operating systems, such as smartphones, tablets, smartwatches, smart TVs, and e-readers, accompany us through almost every moment of our lives and can introduce significant security weaknesses. Even when usage policies are treated as the most important safeguard, the vulnerabilities within these systems cannot be ignored, and use that does not comply with the rules opens serious gaps in internal systems. DEF24 conducts mobile device penetration tests as a dedicated parameter, so that the personal devices entering your environment never become the weakest link in an otherwise strong defense.

Server Penetration Test

Today, servers and similar systems that provide the standard services underpinning an organization's operations and efficiency exist in almost every company. These servers generally run 24/7 and serve as many users as required, which makes any vulnerability they carry especially consequential. DEF24 tests servers both internally and externally, paying particular attention to the interfaces that are exposed to the outside world, where a single overlooked weakness can compromise services the entire business depends on.

Network Device Penetration Test

This is a test service carried out from an internal location in cooperation with the administrators responsible for the devices on the network, such as printers, routers, firewalls, and switches. These everyday devices are frequently overlooked, yet a misconfigured switch or an unpatched printer can quietly hand an attacker a route deep into the network, which is exactly why they deserve dedicated testing.