My Story

I am Dario González Blanco , cybersecurity specialist and systems administrator. Technology has been with me since I was a kid , and over the years it went from being a curiosity to being where I wanted to be.

Every branch of computing interested me equally until, in 2022, I fell for a phishing attack and was robbed. For what I had back then it was a lot of money, but what stayed with me was the feeling. Thinking about the thousands of people who go through that every day, many with a far smaller margin than I had, settled my direction: I work in security so it does not happen to somebody else.

In 2025 I graduated in Network Systems Administration , the systems and networking foundation everything else rests on, while studying security on my own alongside people heading the same way .

That is where my first piece of work came from, “Las dos caras de la Moneda” : a book explaining attacks and defences side by side so an incident can be read from both ends. I would do it differently today, and that is a good sign, but it shows the path I wanted to take.

I then did a master's in cyber intelligence, practising on LetsDefend and Hack The Box and earning the CompTIA Security+ and Blue Team Level 1 certifications. My thesis models the Lazarus APT group with its complete MITRE ATT&CK matrix: motivations, capabilities and TTPs.

I am Spanish and speak English at native level, certified with Cambridge's Certificate of Proficiency in English .

Outside work I compete in arcade rhythm games, and that hobby has led me to maintain both the hardware and the software , repair cabinets and build my own controllers from scratch, from the design to the logic to the finished thing .