Benefits of Web Application Security

Web applications play a vital role in business success and are an attractive target for cybercriminals.

Uncover vulnerabilities

The best defense is a good offense. Our team of penetration testers will assess your application and you will be made aware of every security hole that could lead to compromised applications and data breaches. This provides you with the foresight needed to fortify your web application and keep your most sensitive assets where they belong.

Maintain trust

A cyber assault or data breach negatively affects the confidence and loyalty of your customers, suppliers and partners. However, if your company is known for its strict and systematic security reviews and penetration tests, you will reassure all your stakeholders.

Test your cyber-defence capability

You should be able to detect attacks and respond on time. Once you detect an intrusion, you should start investigations, discover the intruders and block them. Whether they are malicious, or experts testing the effectiveness of your protection strategy. Our feedback from the test will tell what actions can be taken to improve your defence.

What Zeroday.PRO Offers

Our network penetration testing services identify, validate, and prioritize vulnerabilities on internet facing, internal and cloud-based IT infrastructure.

Internal Penetration Testing

Our security engineers approach the local area network as an attacker on the inside. We look for privileged company information and other sensitive assets. This involves incorporating a variety of tools, uncovering user credentials, and attempting to compromise servers, routers, proxies, user workstations, printers and any machine present in the network environment.
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External Penetration Testing

Your perimeter network is attacked every day and even small external vulnerabilities can be damaging. External network penetration testing identifies vulnerabilities on infrastructure devices and servers accessible from the internet. Deliverables include attack narratives that illustrate how vulnerabilities can be used together in attack chains to have the greatest impact.
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Wireless Network Pentesting

WiFi networks may be susceptible to a myriad of attacks. Our pentesting service helps identify exploitable security vulnerabilities of a WiFi network and simulate the attack actions that a real world attacker would carry out. In general, we will attempt to breach the wireless network through two different modes of attack: wireless architecture and wireless clients.
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Our Network Security Testing Methodology

Zeroday.PRO Labs operates under a structured, repeatable methodology. We prioritize this concept in each engagement to make certain that our assessment is reliable, reproducible, and top-notch in quality. As such, our findings can always be verified by your team, before and after the remediation. To get these results, we are guided by the following steps:


This is where all requirements are gathered and goals are set. It’s where types of tests, forms, timelines and limitations are codified and agreed.



In this phase, we perform recon against the target mobile app to understand more about its architecture such as language, libraries, API, security protections, as well as technical specifications.



We perform deeper analysis and look for vulnerabilities that are related to insecure data storage, authentication, custom URL schemes, broken crypto, client side protections & hardening, and more.



We decompile or reverse engineer the mobile app to gain in-depth understanding of the functionality. The process also involves analysis of insecure crypto services such as hardcoded keys, insecure algorithm usage, and so on.



All the API endpoints communicating with the mobile app are also analyzed for potential security issues. We perform dynamic application analysis and ensure complete coverage of OWASP API Top 10 vulnerabilities.



We use a combination of public available and custom-made exploits and techniques in order to tamper with improper configurations, bypass security controls, access sensitive information and in general to establish access to the targets.



We have developed a comprehensive reporting format that provides optimal insight into our work. It consists of a business risk, management summary and a comprehensive test and vulnerability description.



We are happy to re-examine the security weaknesses to ensure that the defense mechanisms have been implemented correctly. This process activity is always free of charge.

Manual vs Automated Penetration Testing

Manual Testing bring an element of human intelligence to your security efforts, and simulates the thinking and logic used by cybercriminals.

Frequently asked questions about Web Application Pentesting

What is web application penetration testing?

A web application penetration test is a type of ethical hacking assessment designed to assess the architecture and design of web applications in order to identify cyber security risks that could lead to unauthorised access and data exposure of your high-risk cyber assets.

Who performs a web application penetration test?

Zeroday.PRO web application penetration testing is performed by our team of Offensive Security certified team, who possess an in-depth understanding of the latest threats and adversarial techniques.

What information is needed to scope a web app pentest?

The information needed to help scope a web application security test typically includes the number and types of web applications to be tested, number of static and dynamic pages, number of input fields and whether the test will be performed from an unauthenticated and or/authenticated perspective (where login credentials are unknown/known).

What web application security testing tools are used?

Penetration testing for web applications not only requires knowledge of the latest web application security testing tools but also a deep understanding of how to use them most effectively. To assess web app security, ethical hackers leverage a range of offensive tools to perform traffic interception and modification, Cross-Site Scripting, SQL injection, and more.

How long does a web application security test take?

The time it takes an ethical hacker to complete a web application penetration test depends on the scope of the test, including the number and type of web apps, static or dynamic pages and input fields.

What happens at the end of a web app pentest?

After each web application security test, the ethical hacker(s) assigned to the test will produce a custom written report, detailing any weaknesses identified, associated risk levels and recommended remedial actions.

How much does a web application penetration test cost?

The cost of a web application penetration test is determined by the number of days our ethical hackers require to fulfil the agreed scope of the engagement. As part of the initial scoping process, a quote is produced upon completion and return of a short pre-evaluation questionnaire.

Why should I use Zeroday.PRO?

Zeroday.PRO team hold certifications from the leading industry organizations, including Offensive Security Web Expert (OSWE), Web Application Penetration Tester (GWAPT) and more. Our security engineers are hugely experienced at performing web application security testing and website security testing and can help your organisation to identify vulnerabilities in a range of programming languages and environments.