Security Articles
Deep dives into cloud security, web server hardening, vulnerabilities, and encryption. Practical guides for developers who take security seriously.
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Is RSA Dead? How It Works, Why It Matters, and What Comes Next
RSA secures the internet but its days may be numbered. Here it is explained from scratch with hand-verifiable math, a look at the quantum threat, and what the post-quantum future actually looks like.
Sessions vs JWTs: Choosing the Right Auth Architecture
Stateful or stateless? Cookies or tokens? The auth architecture debate has real trade-offs most tutorials gloss over. Here's a practical comparison — including the refresh token mistakes that lead to silent account takeovers.
Prompt Injection: The Security Problem Nobody Has Solved Yet
Your AI chatbot is one creative user away from ignoring every instruction you gave it. Prompt injection is OWASP's #1 AI risk, and there is no complete fix. Here's what to do anyway.
JWT Security Mistakes: What I Keep Seeing in Code Reviews
I review a lot of Node.js auth code. The same five JWT mistakes show up over and over. Here's what they are and what to do instead — with nuance, not just "never use localStorage."
All Articles (10)
End-to-End Encryption: What It Actually Protects (and What It Doesn't)
E2E encryption means not even the service provider can read your messages — until you link WhatsApp Web and suddenly a browser has your keys. Here's how the Signal Protocol really works and where the trust boundaries are.
Zero-Knowledge Proofs: Proving You Know a Secret Without Revealing It
Zero-knowledge proofs sound like cryptographic magic — and they kind of are. Here's how they work, where they're already deployed in production systems, and why they matter beyond blockchain.
Zero Trust Architecture: What It Actually Means Beyond the Buzzword
Every vendor sells "Zero Trust." Most of them are selling you a product, not an architecture. Here's what Zero Trust actually requires, where to start, and what you can do without a six-figure budget.
SQL Injection in 2026: Why the Oldest Attack Still Works
SQL injection is old enough to drink. It's also still in OWASP's top 10, still behind major breaches, and still in that one query your ORM didn't cover. Here's the modern defense.
Securing GitHub Actions: Your Pipeline Is an Attack Surface
SolarWinds proved that compromising a build pipeline is game over. Your GitHub Actions workflows have write access to production — are you treating them like it?
Let's Encrypt SSL Setup: Free HTTPS, But Read the Fine Print
Setting up Let's Encrypt takes 10 minutes. Keeping it working takes understanding auto-renewal, Nginx config, and the gotchas that hit you at 2am when your cert silently expires.
Stop Leaking API Keys: I've Seen This Go Wrong Too Many Times
Somebody commits an AWS key to GitHub. Bots find it in seconds. A crypto miner spins up 200 instances. The bill arrives. I've watched this happen three times. Here's how to never be that person.
TLS 1.3: What Actually Changed and Why You Should Care
TLS 1.3 dropped the broken crypto, cut the handshake in half, and made forward secrecy mandatory. Here's a practical upgrade guide for Nginx — and the gotchas nobody mentions.
AWS S3 Security: The Misconfiguration That Keeps Happening
I Googled a client's company name last month and found their S3 bucket indexed on page one. Here's how to make sure that never happens to you.
Node.js Rate Limiting: What Happens When You Skip It
Your Express API is one curl loop away from a $4,000 cloud bill. Here's how rate limiting actually works in Node.js — and why the defaults will bite you.