Daniel García (cr0hn)

I solve tech problems others can’t

I’m Daniel García, though everyone calls me Dani.

Yep, that’s me in the photo. My wife says my forehead looks like a parking spot for a bus. Good thing I don’t rely on my looks for a living.

Searching for “Daniel García” online is like finding a needle in a haystack. So, I adopted an alias long ago:

cr0hn

Not my brightest moment, I’ll admit. No one gets it right on the first try.

People often ask what I do for a living. It’s not an easy question to answer.

I’ve been deep into cybersecurity for over 20 years. But it’s more than just that.

I love my job. Seriously, I’m passionate about it. And I’m pretty good at it too. Getting paid for something you love? It’s amazing.

To give you an idea, I started with computers on a Pentium 200 MMX when I was 15.

At 15, I was already late to the game. But it didn’t matter. I spent hours and hours in front of the screen. Not just playing games, although a bit of that too. What I really enjoyed was tinkering with the operating system, the hardware, everything.

Since then, I’ve been a knowledge sponge. Whether it’s operating systems, development, systems, hacking, defense—I love diving into it all like a kid with a new toy, trying to understand how things work.

And I haven’t stopped.

Alright, but what exactly do you do?

I’ve worked in companies of all sizes. Been a consultant and led teams. Created products and services that have generated measurable and real returns for my clients.

I’ve built companies and helped other startups grow. Real growth, not just hype.

I code in Python because I love it. I’ve created hundreds of open-source projects.

I’ve traveled half the world giving talks. A lot of talks. I founded one of the most important cybersecurity conferences in Spain.

An old boss once called me a “machine gun of ideas”. Not sure if it was a compliment or a critique, but I liked it. So, I kept it.

And I’m not stopping.

What do I do? I solve critical problems that are costing you money. That’s what I do.

What kind of problems?

Well…

You know when you’ve hit a wall with a problem and don’t know how to solve it? When you’ve tried almost everything? When you’ve spent a fortune on consultants and still have no solution? When every day without a solution costs you money?

That’s where I step in. I solve those complex problems where time and money are on the line.

Today, I specialize in critical security, high-performance REST APIs, AI security, and ultra-scaled systems. But if you have another complex technical problem, ask me. If I can help you, I will. If not, I’ll help you find someone who can.

The phrase I hear most from clients is “If we’d hired you sooner, we would’ve saved a ton of money.” And they’re not exaggerating. We’re talking hundreds of thousands of dollars. My dad always said, “For the lazy and the poor, everything costs twice as much.” And he was right.

Before you ask, I’ll tell you.

I’m not cheap. I work with companies that understand real value. If you’re looking for cheap, there are better options. If you need to solve critical problems that are costing you money, let’s talk. If you’re looking for cheap and good, that doesn’t exist. Don’t waste your time.

What I’ve done

• Named one of the 50 most influential DevSecOps professionals worldwide
• +3,500 stars on GitHub across my open source projects
• +100 open source projects created
• Tools in Kali Linux and BlackArch - My projects are part of the world’s most important security distributions
• International speaker: RSA Conference (USA), OWASP Hamburg (Germany), RootedCON, PyConES, Codemotion and many more
• Founder of OWASP Madrid and Navaja Negra - Two of Spain’s most important cybersecurity communities (no longer running them)
• International API security expert - Worked at UK companies like 42Crunch, world leaders in API security
• 20+ years of experience in cybersecurity, hacking, and development

How I can help you

• Critical security: Advanced pentesting, audits that find what others miss, AI security, secure architectures that work
• High-performance REST APIs: Ultra-scaled development, cost-reducing optimization, architectures handling millions of requests
• DevSecOps: Docker, Kubernetes, CI/CD, container security - implementations that work in production, not just demos
• High-impact technical consulting: When you’ve tried everything and nothing works. When every day without a solution costs you money

Sr. Lobo Consulting

If you’re here, you’ve already tried everything else.

When everything breaks, when the clock is ticking and others don’t know what to do, that’s when a Sr. Lobo steps in.

+15 years solving critical problems at banks, startups, global infrastructures, production systems.

I know where to look, what to ask, and how to fix it.

€250/hour. One session. Your problem. A concrete solution and an actionable plan from day one.

If you’re here, it’s because you need results.

Want to know if I can help with your problem? Let’s talk.