Cybersecurity

Cybersecurity Insights

The security landscape moves faster than any single practitioner can track — zero-day markets, nation-state tooling leaks, and the AI-assisted lowering of the exploit-development skill floor have compressed the defender's advantage window significantly. This is an interest of mine that overlaps with everything else on the site.

Security operations — Defense in depth in practice

I run a homelab security stack — network monitoring, fail2ban, Pi-hole, self-hosted logging — to understand the tooling at an operational level rather than just a theoretical one. Reading threat reports is useful; watching live SSH brute-force attempts on your own perimeter and analysing the patterns in real time provides a different depth of understanding. Most breaches don't originate from sophisticated zero-days but from unpatched services, credential reuse, and misconfigured access controls — the boring, consistent failure modes that discipline prevents.

My focus areas are network-level detection, supply-chain integrity, and practical hardening of self-hosted services. The defender's asymmetry problem — attackers need one success, defenders need 100% coverage — drives the need for layered controls: perimeter detection, internal segmentation, endpoint monitoring, and a culture that treats security as everyone's responsibility rather than a dedicated team's problem. What interests me about cybersecurity is how it connects to every other domain on this site — missile guidance involves cyber-physical security, fighter avionics involve electronic warfare and signals intelligence, rocket telemetry involves data integrity and communications security. The overlaps between disciplines are where the interesting problems live.