visitor@czeczokrisztian.hu:~$
// security // systems // low-level tooling
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Building things at the edge of systems & security. Interested in how software breaks, how attackers think, and how tooling should be built when you assume both.
Runs offensive-minded projects, defensive infrastructure, and everything that sits between a terminal and a network socket.
Think you've got what it takes? There's a live terminal at the bottom of this page — try to hack me.
SSH/Telnet honeypot on a small VPS for real-world malware collection, with Telegram alerting and VirusTotal lookups on dropper chains.
Self-built lab environment for continuous security testing across API, web, and Active Directory surfaces, driven by a custom AI agent that autonomously hunts for vulnerabilities.
Ongoing vulnerability research in open-source projects — manual review and responsible reporting of security issues upstream.
Website development and security review work — building client sites and auditing existing ones for vulnerabilities.
Dark web monitoring and custom scraping tooling for threat intelligence collection.
OT/ICS network design and deployment — PLC integration, secure remote access, data acquisition, and automation for industrial environments.
Automated job-application pipeline — scans job portals, generates a tailored CV from each posting's description, emails it automatically, and tracks application status in a spreadsheet with daily summary reports.
Prefer not to leave an email? This message is encrypted in your browser with my public key before it ever leaves your device (RSA-OAEP + AES-GCM). The server only ever stores ciphertext — I'm the only one who can read it, offline, with my private key. Auto-deleted after 90 days. See privacy.