@Perfex
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Teenage Dev building focused, high-impact tools with AI for Cybersecurity.
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Ai agent automation for devs and security teams
Perfex's blogs
Recently published
Attack Graph Simulator: Reducing Uncertainty in Security Through Bayesian Inference
Jan 25 · 4 min read · Security systems are complex. Attackers don’t follow predictable paths and defenders rarely have complete visibility into a system’s state. This uncertainty makes reasoning about attacks difficult — especially when you need to decide what could happe...
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When Reinforcement Learning Is The Wrong Tool
Jan 5 · 3 min read · I recently worked on a small game that looked deceptively simple but revealed an important lesson about how we choose tools in AI. The task was this: You must guess a 4-digit code with no repeated digits.After each guess, you receive feedback: Dead:...
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Why Critical Thinking Is Becoming the Developer’s Most Valuable Skill 🧠⚙️
Dec 6, 2025 · 4 min read · Modern development is no longer just about writing functions and fixing bugs.It’s about reasoning under uncertainty, understanding systems, questioning defaults, and seeing what others overlook. Your environment, your tools, the libraries you trust, ...
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Why Thinking Slower Makes You Build Faster: Engineering Principles That Changed My Workflow 🚀
Nov 29, 2025 · 3 min read · When you begin building real systems, something surprising happens:Being busy feels productive — but stillness feels uncomfortable. That discomfort pushes us to act too fast, switch tasks too early, and complicate things that should be simple. Almost...
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