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Take your admin, database and internal tooling off the public internet entirely: WireGuard peers and keys, binding services to the tunnel, restricting Django admin by network, revoking access, the MTU trap, and what a VPN does not solve.
Where secrets leak in a Django deployment and what to do about it: file permissions, environment variables versus files, build arguments baked into image layers, git history you cannot really erase, encrypted-at-rest storage, and a rotation process.
Certificates from the inside out: what the chain actually proves, HTTP-01 versus DNS-01, renewals that stop silently, rate limits, HSTS as a one-way door, and how to read the error messages that send everyone in the wrong direction.
Lock down a Django server properly: default-deny firewall rules, key-only SSH without locking yourself out, fail2ban that actually bans, IPv6 rules people forget, and why Docker quietly publishes ports straight past your firewall.
Lock down server-to-server and public APIs. Layer per-client rate limiting, verify request integrity with HMAC signatures, defeat replay attacks with nonces and timestamps, and authenticate machines with mutual TLS.
Kill the password. Implement WebAuthn/passkeys in Django end to end — registration and authentication ceremonies, public-key credential storage, the security model that makes passkeys phishing-resistant, and a sane fallback strategy.
From the first alert through containment, eradication, forensics, and post-incident review — a structured playbook for handling web app breaches.
How professional adversary simulation operates against web applications — initial access via phishing, persistence inside accounts, lateral movement through connected systems.
How authentication actually breaks in modern web apps — session theft, JWT confusion, OAuth flaws, SSO race conditions, and the controls that actually work.
Beyond nmap and dirbuster: how modern attackers map a target's web attack surface using JavaScript analysis, subdomain enumeration, and API discovery.
How WAFs work, the classes of bypass techniques attackers use, and the defensive controls that don't rely solely on signature matching.
SSRF chains, deserialization, prototype pollution, CSPP, race conditions, and the subtle bugs that get past automated scanners. With Django-specific exploitation and defense.
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