Who I Am
IT professional with a practical focus on network security, infrastructure, and building things that solve real problems.
I am Mihai, an IT professional based in Bucharest, Romania. I got into technology the way most engineers do: by being genuinely curious about how things work and stubborn enough to keep pulling at threads until I understood them. That curiosity has never stopped. Whether it is reverse-engineering a SIP trace at work, writing a honeypot script at home, or reading about a new attack vector at midnight, I am always learning.
Professionally, I have worked across two demanding support environments. At CyberGhost VPN I handled 70+ ITSM tickets a day for an international user base, dealing with everything from TLS handshake failures to firewall misconfigurations. Now at AudioCodes, I support enterprise VoIP infrastructure across global clients, analysing packet captures and securing SBC configurations in real time.
What links both roles is the same thing I value most: reliability. I show up, I dig in, I document clearly, and I do not escalate problems I can solve myself. When I do escalate, I bring a full picture. I have built a reputation as someone you can hand a messy incident to and trust that it will come back resolved and documented.
I build security tools in my own time because I believe that to defend systems properly, you need to understand how they are attacked. Every project on this site exists because I wanted to understand something more deeply, not just read about it.
Cybersecurity
Threat detection, network security, endpoint hardening, and the ongoing dynamic between attackers and defenders. I follow CVEs, read incident reports, and build tools to understand techniques hands-on.
Networking and Protocols
SIP, TLS, TCP/IP, VPN tunneling. I find the low-level behaviour of networks genuinely fascinating. Packet captures are like reading the source code of communication itself.
Scripting and Automation
Python and Bash are my daily tools. I find real satisfaction in spotting a repetitive task and building something that eliminates it entirely. Good automation is good engineering.
Systems and Infrastructure
How operating systems manage processes, memory, and I/O. Why certain architectures fail under specific conditions. The intersection of hardware constraints and software behaviour.
Aerospace and Engineering
Aviation, rocketry, aerospace engineering. Systems where failure is not an option and every component is designed with exacting precision. The discipline required in that field commands a lot of respect.
Science and Physics
From quantum mechanics to thermodynamics. Understanding the fundamental rules that govern physical reality makes you a better engineer in any domain.
AI and Machine Learning
How models are trained, how they fail, and how they will reshape the security landscape. AI-assisted threat detection and adversarial machine learning are areas I am watching closely.
How Things Are Built
Manufacturing, civil engineering, electronics. The engineering of physical systems is just as compelling as digital ones. I find the design decisions behind large-scale infrastructure genuinely interesting.