DMZ and port forwarding done safely — network segmentation, NAT and firewall rules, port forwarding vs VPN vs reverse proxy, and a hardened reference setup.
Auditing the viral 2026 claim that a quantum computer cracked RSA-2048 — what the papers actually say, qubit counts, Shor's algorithm thresholds, and where post-quantum crypto stands.
SOC 2 vs ISO 27001 technical deep dive — trust service criteria, Annex A controls, audit architecture, evidence collection, and implementation patterns.
Practical zero trust architecture — policy decision point, policy enforcement point, mTLS, SDP, identity-aware proxies, and migration from perimeter-based networks.