Starting a career as a Penetration Testing Specialist (Ethical Hacker) requires a combination of theoretical training, practical experience, and recognized certifications. Here is a step-by-step guide to launching this career:

1. Acquire the foundations of IT and security

• Academic Training: A degree in Computer Science, Computer Engineering, Cybersecurity, or related fields is an excellent starting point. However, it is not strictly necessary if you acquire the skills through other means.
• Fundamental Skills: Familiarizing yourself with operating systems (Windows, Linux), networking, and network protocols (TCP/IP, HTTP, DNS) is essential. Understanding how web applications and operating systems work is crucial for a penetration tester. It is also worth exploring the differences between ethical hacking and penetration testing, two roles that are often confused but have distinct scopes.

2. Develop programming and scripting skills

• Programming Languages: Learn to program in languages such as Python, Bash, PowerShell, and C/C++. These are useful for writing exploits, test automation, and developing custom tools.
• Scripting: Learning to write scripts will allow you to automate repetitive tasks and create custom tools for your tests.

3. Learn Ethical Hacker and security techniques

• Self-study: There are numerous online resources, such as blogs, YouTube videos, and forums that offer detailed guides on hacking and security techniques. Exploring the benefits of a structured ethical hacking course can help you choose the most suitable training path.
• Recommended Books: Books like “The Web Application Hacker’s Handbook” and “Metasploit: The Penetration Tester’s Guide” are excellent resources for deepening your knowledge of penetration testing techniques.

4. Practice in virtual environments and test labs

• Install a Virtual Lab: Use tools like VirtualBox or VMware to create virtual environments where you can test your skills without risk. A good practical exercise is to simulate attacks on corporate Windows environments: ethical hacking techniques on Active Directory are among the most requested in a professional setting.
• Practice Platforms: Sign up for platforms like Hack The Box, TryHackMe, and VulnHub, where you can practice on a wide range of hacking scenarios and participate in CTF (Capture The Flag) competitions.

5. Obtain recognized certifications

• CEH (Certified Ethical Hacker) Certification: One of the most recognized certifications for aspiring ethical hackers, it provides a good foundation in hacking techniques and countermeasures.
• OSCP (Offensive Security Certified Professional) Certification: Considered one of the most prestigious certifications in penetration testing, the OSCP requires passing a practical exam where you must perform a full penetration test on a network.
• Other Certifications: GPEN (GIAC Penetration Tester) and eLearnSecurity eCPPT are other useful certifications for specializing in penetration testing.

6. Gain practical experience as an Ethical Hacker

• Internships or Entry-Level Jobs: Look for internship opportunities or entry-level roles as a Security Analyst or Junior Penetration Tester. Working alongside a team specialized in ethical hacking activities on real infrastructures accelerates technical growth in a way that is difficult to replicate on your own. This will allow you to gain practical experience and build a network of contacts in the industry.
• Participation in Bug Bounty Programs: Participate in Bug Bounty programs on platforms like HackerOne or Bugcrowd, where you can earn money by finding vulnerabilities in real systems.

7. Develop a portfolio and build a network of contacts

• Portfolio: Create a portfolio that demonstrates your skills and the projects you have worked on. Include results achieved on practice platforms, certifications, and any relevant bug bounties.
• Networking: Attend conferences, meetups, and online cybersecurity forums to connect with industry professionals. LinkedIn is also an excellent tool for expanding your network of contacts.

8. Stay up to date

• Continuous Learning: Cybersecurity is a constantly evolving field. It is essential to stay updated on the latest threats, techniques, and penetration testing tools.
• Resources: Follow blogs, podcasts, and participate in webinars and courses to continue developing your skills.

9. Career advancement

• Advanced Roles: With experience, you can advance toward more specialized roles such as Senior Penetration Tester, Red Team Operator, or Security Consultant.
• Advanced Certifications: Consider obtaining advanced certifications such as OSCE (Offensive Security Certified Expert) or CISSP (Certified Information Systems Security Professional) for more senior roles.

10. Contribution to the Ethical Hacker community

• Sharing Knowledge: Contribute to the community through blogs, talks, or by participating as a mentor. Contributing to the community helps you build your reputation and stay connected with industry news.

By following these steps, you can start and progress in a rewarding career as a Penetration Testing Specialist (Ethical Hacker).