About
Security and software engineer. João Pessoa, Brazil.
I'm Digenaldo. I work with cybersecurity and software engineering, almost always between code and architecture.
I earned a bachelor's in Information Systems at UFPB and a master's in Information Technology at IFPB. My master's research was on DDoS detection at the application layer, with machine learning and Big Data. The question still interests me: how to notice a system under attack without turning everything into an alarm.
In the last few years I've focused on security engineering for software and infrastructure: applications, distributed environments, cloud, and, more and more, AI security, the new problems that models and agents bring.
I also teach. Explaining a topic is how I finish understanding it, so some of what I study turns into classes or material.
On Instagram @digenaldo.neto I talk about hacking and AI. Here I keep the longer writing: the articles are in English, and you can read the rest of the site in English or Portuguese.
## Technologies
Python, Go, Java, JavaScript. Application security, distributed systems, observability, machine learning applied to traffic, and, recently, the security of LLMs and agents.