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Hacking Web Applications & Penetration Testing: Web Hacking (Udemy.com)

Learn Ethical Web Hacking, Bug Bounty, Web Penetration, Penetration Testing and prevent vulnerabilities with this course

Created by: Muharrem AYDIN

Last updated September 2026

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What you will learn

  • Ethical hacking is a good career because it is one of the best ways to test a network.
  • Ethical hacking involves a hacker agreeing with an organization or individual who authorizes the hacker to levy cyber attacks on a system or network
  • In addition to proficiency in basic computer skills and use of the command line, ethical hackers must also develop technical skills
  • Many hackers use the Linux operating system (OS) because Linux is a free and open-source OS, meaning that anyone can modify it.
  • Ethical hacking is legal because the hacker has full, expressed permission to test the vulnerabilities of a system.
  • The different types of hackers include white hat hackers who are ethical hackers and are authorized to hack systems, black hat hackers
  • Whether you want to get your first job in IT security, become a white hat hacker, or prepare to check the security of your own home network

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Quality Score

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Overall Score : 88 / 100

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Course Description

Welcome to the "Hacking Web Applications & Penetration Testing: Web Hacking"

Learn Ethical Web Hacking, Bug Bounty, Web Penetration, Penetration Testing and prevent vulnerabilities with this course


This course is for the beginners, so you don’t need to have a previous knowledge about hacking, penetration testing, or application development. You’ll learn how to “ethically” hack websites from scratch.
Whether you want to get your first job in IT security, become a white hat hacker, or prepare to check the security of your own home network, Udemy offers practical and accessible ethical hacking courses to help keep your networks safe from cybercriminals.

Penetration testing skills make you a more marketable IT tech. Understanding how to exploit servers, networks, and applications means that you will also be able to better prevent malicious exploitation. From website and network hacking, to pen testing in Python and Metasploit, Udemy has a course for you.
Our Student says that: This is the best tech-related course I've taken and I have taken quite a few. Having limited networking experience and absolutely no experience with hacking or ethical hacking, I've learned, practiced, and understood how to perform hacks in just a few days.

I was an absolute novice when it came to anything related to penetration testing and cybersecurity. After taking this course for over a month, I'm much more familiar and comfortable with the terms and techniques and plan to use them soon in bug bounties.

FAQ regarding Ethical Hacking on Udemy:

What is Ethical Hacking and what is it used for ?
Ethical hacking involves a hacker agreeing with an organization or individual who authorizes the hacker to levy cyber attacks on a system or network to expose potential vulnerabilities. An ethical hacker is also sometimes referred to as a white hat hacker. Many depend on ethical hackers to identify weaknesses in their networks, endpoints, devices, or applications. The hacker informs their client as to when they will be attacking the system, as well as the scope of the attack. An ethical hacker operates within the confines of their agreement with their client. They cannot work to discover vulnerabilities and then demand payment to fix them. This is what gray hat hackers do. Ethical hackers are also different from black hat hackers, who hack to harm others or benefit themselves without permission.

Is Ethical Hacking a good career?

Yes, ethical hacking is a good career because it is one of the best ways to test a network. An ethical hacker tries to locate vulnerabilities in the network by testing different hacking techniques on them. In many situations, a network seems impenetrable only because it hasn’t succumbed to an attack in years. However, this could be because black hat hackers are using the wrong kinds of methods. An ethical hacker can show a company how they may be vulnerable by levying a new type of attack that no one has ever tried before. When they successfully penetrate the system, the organization can then set up defenses to protect against this kind of penetration. This unique security opportunity makes the skills of an ethical hacker desirable for organizations that want to ensure their systems are well-defended against cybercriminals.

What skills do Ethical Hackers need to know?

In addition to proficiency in basic computer skills and use of the command line, ethical hackers must also develop technical skills related to programming, database management systems (DBMS), use of the Linux operating system (OS), cryptography, creation and management of web applications and computer networks like DHCP, NAT, and Subnetting. Becoming an ethical hacker involves learning at least one programming language and having a working knowledge of other common languages like Python, SQL, C++, and C. Ethical hackers must have strong problem-solving skills and the ability to think critically to come up with and test new solutions for securing systems. Ethical hackers should also understand how to use reverse engineering to uncover specifications and check a system for vulnerabilities by analyzing its code.

Why do hackers use Linux?
Many hackers use the Linux operating system (OS) because Linux is a free and open-source OS, meaning that anyone can modify it. It’s easy to access and customize all parts of Linux, which allows a hacker more control over manipulating the OS. Linux also features a well-integrated command-line interface, giving users a more precise level of control than many other systems offer. While Linux is considered more secure than many other systems, some hackers can modify existing Linux security distributions to use them as hacking software. Most ethical hackers prefer Linux because it's considered more secure than other operating systems and does not generally require the use of third-party antivirus software. Ethical hackers must be well-versed in Linux to identify loopholes and combat malicious hackers, as it’s one of the most popular systems for web servers.

Is Ethical Hacking Legal?
Yes, ethical hacking is legal because the hacker has full, expressed permission to test the vulnerabilities of a system. An ethical hacker operates within constraints stipulated by the person or organization for which they work, and this agreement makes for a legal arrangement. An ethical hacker is like someone who handles quality control for a car manufacturer. They may have to try to break certain components of the vehicle such as the windshield, suspension system, transmission, or engine to see where they are weak or how they can improve them. With ethical hacking, the hacker is trying to “break” the system to ascertain how it can be less vulnerable to cyberattacks. However, if an ethical hacker attacks an area of a network or computer without getting expressed permission from the owner, they could be considered a gray hat hacker, violating ethical hacking principles.

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Instructor Details

Muharrem AYDIN

After 20+ years of software engineering experience with titles of software developer, product manager, and integration architect, I have been working in cyber security domain for last 15 years. I am not only a cyber security expert but also the head and kick-starter of a cyber security consultancy unit. 

In security field, I have performed dozens of penetration tests for institutes from different sectors: finance, military, state agencies, and telcos.

I have been consulting different companies in security field which includes global banks such as ING Bank, HSBC, CitiBank and more.

In addition, I am an adjunct instructor in a university and teaching cyber security for years.

I involved in technical areas and has taken responsibilities in: 

Penetration tests (Pentests) and security audits

Cyber security training & consultancy

Source code analysis & secure software development

Cyber security incident response

Information security management system (ISMS) consultancy 

Open source cyber security systems, such as OpenVAS, OSSEC, OSSIM, Snort, Suricata, mod security

I'm creating my courses by using my know-how and 10 years of experience. As a result, our first course "Hacking Web Applications and Penetration Testing: Fast Start!" has gained "Best Seller" reputation in its category. 

I have risen a lot of cyber security experts from scratch, and you are the next.


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Reviews

4.4

2,701 ratings on Udemy

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By Dan Burke on 6/15/2026

There was a lot of coding and working with finite details in this course, but it was comprehensive and delivered on its promised expectations from an educational standpoint. While Muharrem Aydin is listed as the instructor for this session, the instruction and narration for this course felt impersonal and a little too polished, almost as if Mr. Aydin phoned his course in via AI. It would have been better to get direct perspective from Mr. Aydin himself, and maybe a few shots of him on camera. Otherwise, the course was useful and insightful, and made good use of imagery to accompany the vocal instruction.

By Alexander Fitterling on 8/15/2025

This course covers everything from security fundamentals to advanced concepts, introducing both essential tools and common security flaws. It starts with a light introduction to the basics, then delves deeply into the tools and techniques used in security, including exploitation methods. Overall, it is a well-crafted expert-level course that imparts the in-depth skills needed to succeed in this field. From a didactic perspective, it is excellently executed.

By Sachin Singh on 4/12/2023

Course structure and video narrative doesn't match correctly. For instance in section 1 lesson 5 it mentions which lessons to skip if you are using either vmware or virtual box. The order is in-correct. Section 1 also only focusses on installing Kali linux and owasp broken web application. How is that an introduction to ethical hacking?

By Yann Stepienik on 8/27/2019

some typos, depth/difficulty fluctuate too much (mixing very specific and very basic knowledge, meaning any audience will be hooked off at some point)

By Emre Aslan on 2/1/2018

Lectures is starting from basic coding of web applications and going to the penetration tests. In lectures a lot of tools were introduced and explained in detail with the exercises. Each lecture was promoting learning brand new tool. Watching lectures without a break really helped me. Lectures always kept my curiosity up.

By Dogancan Yildiz on 1/27/2018

Son yıllarda programlamaya ve yazılıma yöneldim. Kendimi geliştirmek adına udemy den bir sürü kurs alıp bitiriyorum ne öğrensem kardır diye bakıyorum genç yaşımda. Bu kursu da iyi ki almışım ufkumu genişletti resmen hocamız da tane tane çok güzel anlatmış anlaşılmayacak hiçbir şey yok öğrenmek istedikten sonra :)

By Onur Utku Buçan on 1/26/2018

Hey, Thank you for this. I really feel lucky to have this course. It is definelty teaching from scratch. It is also good tell us the free tools to use. I more liked the information gathering part. It teachs in two ways. To hack and also to learn how to be safe in digital world. I learned a lot and will be waiting more. Cheers

By Arthur Kay on 1/23/2018

This course is a basic introduction to penetration testing -- I was hoping for more meat and hands-on learning, but overall I feel the instructor did a great job providing valuable explanations of the subject. I was very happy to walk away from this course having setup both Kali Linux and OWASP Broken Web Apps virtual machines -- and I now have a limited understanding of what these virtual machines include for tooling/examples. I think this introductory course has well-prepared me to continue learning about pen-testing. I would recommend this course to anyone looking for an introduction to this subject, but anyone with skills beyond that level might want to continue looking.

By Huzeyfe Borazan on 12/11/2017

Great introduction course. I am a software developer and I have a very limited experience about web application security so I learnt a lot from this course. This is a very efficient course because instructor covers as much as about the topic in a fairly short time. There is a lot to take notes and practice. Examples are really good and make it much easier to understand. Strongly recommend this course especially beginners about web application security.

By Harun Sarac on 11/13/2017

I am so pleased with this training to learn about Ethical Hacking where I'm lack of. I think it'll make my concerns a lot less than before while developing websites. The training content is really clear and informative for a beginner along with its name "Fast Start". I had a good learning experience and grabbed practical informations. So, I'm looking forward to seeing next levels of this course from the instructor. The only thing I would suggest is giving more examples to do practice. Thank You!

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