Career Advice for Aspiring Ethical Hackers, Pentesters and Application Testers
I've been in security for over 25 years. Started as a developer, moved into pentesting, led red team engagements, became a QSA, did presales, and now I'm deep in AI security. I've watched this industry change a lot, and I want to be honest with you about where things are headed.
The Industry Is Shifting
For a long time, there was massive demand for technical assessments. Compliance frameworks like PCI, HIPAA, and SOX required organizations to get third-party security testing done. Companies paid a premium for network, application, and wireless pentesters. That demand isn't disappearing, but it's not what it used to be.
Here's why. Tools like Nessus and Qualys have gotten good enough that someone with moderate skills can run a scan and make sense of the results. Most findings from a typical pentest are patching gaps and default configurations. Companies are starting to ask a fair question: why pay a fortune for a third-party report that tells them what an automated tool already flagged?
On top of that, platforms like Cymulate and Pentera are automating red team simulations and breach-and-attack scenarios. AI-powered scanning tools are popping up everywhere. I haven't used all of them, but the trajectory is clear. The low-hanging fruit of security testing is getting automated. Fast.
Don't Fall for the Hype
With all the career promises around "ethical hacking," training schools and YouTube instructors have flooded the market with courses that focus on tools. Click this button in Burp Suite. Run this Metasploit module. Watch the shell pop. It looks exciting, and it sells courses.
But here's the problem. If your entire skill set is knowing which buttons to click in someone else's tool, you're one product update away from being irrelevant. The tools change constantly. The fundamentals don't.
Mr. Robot is the only show that gets hacking even close to right, by the way. If you haven't watched it, do that. But don't confuse entertainment with reality.
What Actually Makes You Valuable
The people who last in this field, the ones who are still relevant 10 and 15 years in, all have one thing in common. They understand the fundamentals deeply.
That means networking. Not "I know what TCP is" networking. I mean really understanding how packets flow, how DNS resolution works, what happens during a TLS handshake, how routing decisions get made. When you understand networking at that level, you can look at traffic and immediately spot what doesn't belong.
It means operating system internals. How does Windows handle authentication? What's actually happening when a Linux process forks? How do file permissions really work under the hood? This is the knowledge that lets you find the vulnerabilities that scanners miss.
And it means scripting. Python, PowerShell, Bash. You don't need to be a software engineer, but you need to be able to automate your work, write custom tools when off-the-shelf ones don't cut it, and read code well enough to spot security issues in it.
The Advice I'd Give My Younger Self
Learn the basics so well that you could explain them to a 10-year-old. Seriously. If you can't explain how a SYN flood works without using jargon, you don't understand it well enough yet.
Build things. Set up a home lab. Break things on purpose and figure out why they broke. Write scripts that solve real problems you encounter. Document what you learn, even if nobody reads it. The act of writing forces you to actually understand what you're doing.
Stay curious. The specific technologies will change. Cloud security barely existed when I started. AI security wasn't a thing five years ago. But the people who had strong fundamentals adapted to those shifts without starting over. They just applied what they already knew to a new context.
This field rewards genuine passion and continuous learning more than any certification or bootcamp. Put in the work to understand the "why" behind things, not just the "how," and you'll be fine no matter where the industry goes next.