#Security

End-to-End Encryption Explained: Sealed Envelopes Within Envelopes & Cryptography (2026)

OAuth 2.0 Explained: The Valet Key Analogy, Scopes, and PKCE Authorization (2026)

Bot Detection Beyond CAPTCHA: Behavioral Signals in Practice

CAPTCHAs frustrate legitimate users. Learn how to detect automated headless browser bots using mouse entropy, web audio fingerprinting, and JA3 TLS signatures.

Building a Spam/Fraud Detection System From Rules to ML in 2026

A comprehensive engineering guide to scaling fraud and abuse prevention. We analyze deterministic velocity heuristics, Redis sliding-window leaky buckets, real-time feature stores, XGBoost risk scoring models, and hybrid decision engines processing 100,000 requests per second.

Homomorphic Encryption: A Practical (Slow) First Experiment

Learn how Fully Homomorphic Encryption (FHE) allows performing mathematical operations on encrypted ciphertext without decrypting it first.

Ransomware Economics in 2026: Why Payment Still Sometimes Makes Sense

The uncomfortable math of ransomware: when paying is cheaper than not paying, how threat actors price demands, what RaaS business models look like, and what engineering controls change the calculus.

75 Million Records for Sale: What the Revolut-Scale Breaches Have in Common

Sifting truth from cybercrime forum claims. Analyze the commonalities in massive fintech data breaches, credential aggregation risks, and credential stuffing vectors.

Audit Logging: Building a System You Can Actually Trust in Court

The tamper-evident security audit log blueprint. SHA-256 Merkle trees, immutable append-only ledgers, cryptographic signing, and legal evidence admissibility.

Giving an AI Agent Write Access to Production: What I Learned the Hard Way

Production agent postmortem. What happened when an autonomous agent dropped a production table, and the 5 security guardrails required for production write access.

GPT-5.6's Native Computer Use: I Let It Control My Machine for a Day

The boundary between software and operator has dissolved. Here is a technical analysis of GPT-5.6 Sol's native computer use API, OSWorld benchmarks, and visual prompt injection risks.

Reading the Fine Print: What AI Coding Tools Actually Do With Your Code

The AI ToS audit. How code retention clauses, telemetry logging, local AST indexing, and zero-data-retention (ZDR) APIs handle your intellectual property in 2026.

Building a Sandboxed Filesystem MCP Server in Rust

Learn how to build a secure, lightweight filesystem MCP server in Rust. Implement secure workspace boundaries and memory-safe file operations for AI agents.