viot ยท lab notes https://viotnet.pages.dev/ 2026-10-16T00:00:00Z Konstantinos Papakonstantinou A Windows 11 forensics case, and an AI agent for triage https://viotnet.pages.dev/blog/windows-11-forensics-ai-agent/ 2026-10-16T00:00:00Z A course forensics case on an encrypted Windows 11 VM: handling the evidence, mapping the findings to MITRE ATT&CK, and what an LLM agent can and cannot do for triage. Designing a secure smart-city IoT architecture https://viotnet.pages.dev/blog/secure-smart-city-architecture/ 2026-10-16T00:00:00Z A layered edge-to-cloud design for city cameras, traffic sensors and street lighting, and the controls that keep one hacked lamp post from reaching the rest. Madrid air quality: clustering, classification and transfer learning https://viotnet.pages.dev/blog/madrid-air-quality-machine-learning/ 2026-10-16T00:00:00Z A team project on Madrid air-quality data: K-Means against DBSCAN, SVM against Naive Bayes, and a small neural network that behaved better with transfer learning. A network log analysis agent that keeps the evidence in-house https://viotnet.pages.dev/blog/local-llm-network-log-analysis/ 2026-10-16T00:00:00Z Detecting beaconing, DNS tunnelling, lateral movement and exfiltration in network logs with plain statistics, then letting a small local LLM write the summary. A motion and comfort sensor app, with replay protection https://viotnet.pages.dev/blog/iot-activity-sensor-replay-protection/ 2026-10-16T00:00:00Z A team project for an IoT security course: recognising posture and falls from an accelerometer, a heat-index comfort reading, and a nonce against replayed messages. I audited my own password manager, then rewrote it https://viotnet.pages.dev/blog/rewriting-my-password-manager/ 2026-10-15T00:00:00Z Good primitives are not a secure system. What a security audit of my own Python password manager found, how version 2 is designed, and five bugs that only appeared when I ran it.