Łukasz F.D. | AI-Driven Secure Development & CTI

About & Current Focus

I am Łukasz, a Backend Developer and Cybersecurity Engineer. I focus on the advanced intersection of Artificial Intelligence and information security. My current key area is designing and implementing AI-driven secure development workflows.

LLM-Augmented Programming

My work involves developing solutions like the Home Network Guardian project, where I design and implement automated IoC (Indicators of Compromise) analysis and local network security using Enterprise topologies. This approach heavily relies on leveraging Large Language Models (LLMs) as advanced engineering tools to accelerate and secure the development process. This involves:

Architecting robust solutions and defining clear objectives.
Utilizing LLMs for code generation, secure code review, and vulnerability pattern identification.
Building AI-assisted development pipelines that enhance efficiency while maintaining high-security standards.

This site serves as a platform to share my secure coding practices, insights into Cyber Threat Intelligence (CTI), and demonstrations of how LLMs can be integrated into a modern security-first development lifecycle.

Latest Project: Cyber AI Sentinel

Cyber AI Sentinel is an advanced evolution of my network monitoring research, now focusing on AI-driven automated workflows using n8n. The system has been migrated to a professional Proxmox VM environment (Development) and Raspberry Pi 5 (Production).

Secrets Management: Integrated HashiCorp Vault for enterprise-grade security of API keys (VirusTotal) and database credentials.
Secure Access: Implemented Nginx Reverse Proxy with SSL termination, enabling secure subdomain-based access (e.g., n8n.local, grafana.local).
Threat Data Lake: Utilizing MongoDB for storing raw JSON threat reports and MySQL 8.0 for structured CTI analysis.
Infrastrucutre as Code: Entire deployment is fully automated using Ansible, from system hardening (UFW/Fail2Ban) to container orchestration.

Check the full documentation on GitHub: cyber-sentinel repository.

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Recent Updates

Date: 19/03/2025 - [Documentation]: Cyber AI Sentinel: Official documentation website.
Date: 16/03/2025 - [GitHub Repository - release]: Cyber AI Sentinel: First stable release of the project - v1.0.0.
Date: 24/02/2025 - [GitHub Repository]: Cyber AI Sentinel: Integrated HashiCorp Vault for secrets management and Nginx Reverse Proxy for secure service routing.
Date: 30/12/2025 - [GitHub Repository]: Cyber AI Sentinel: Launched a new CTI project focused on AI workflows in n8n and Passive DNS monitoring.
Date: 12/11/2025 - [Link]: CTI and IoCs: Grafana and VirusTotal
Date: 15/10/2025 - [Link]: Home Network Guardian - updating the project and adding deployment using Ansible
Date: 17/09/2025 - [Link]: CTI and IoCs: VirusTotal IOC DNS Rules - Suricata
Date: 15/09/2025 - [Link]: CTI and IoCs: Database Architecture & Data Analysis
Date: 08/09/2025 - [Link]: Introduction: CTI and IoCs in My Home Lab
Date: 19/06/2025 - [Link]: Final Project Completed!: Local network security system
Date: 27/03/2025 - [Link]: Second phase - Raspberry PI 5: Advanced Network Security
Date: 15/02/2025 - [Link]: First phase - Raspberry PI 4B: Pi-hole, Pi-VPN and unbound.
Date: 30/01/2025 - [Link]: Securing Home Networks: DNS Filtering, Proxy & Monitoring.
Date: 05/01/2025 - [Link]: John the Ripper - Password cracking software.
Date: 05/01/2025 - [Link]: Nmap - Network scanning.
Date: 04/01/2025 - [Link]: Python API - Configuration and Testing.
Date: 02/01/2025 - [Link]: Wi-Fi: + Cracking WPA Handshake Using HCXPCAPNG Tool and Hashcat.
Date: 01/01/2025 - [Link]: Wi-Fi: Security Testing.
Date: 28/12/2024 - [Link]: Python: TLS - network scans using Scapy.
Date: 23/12/2024 - [Link]: Added new TShark analysis.
Date: 16/12/2024 - [Link]: Python: http_api.py.
Date: 15/12/2024 - [Link]: Python: Network scans using Scapy.