Testing
Security controls fail silently. A broken authentication check doesn't throw an exception—it returns 200 where it should return 403. A rate limiter with an off-by-one error doesn't log a warning—it just lets the attack through. And because security failures are often hard
Testing
Security regression testing is the practice of continuously verifying that security controls remain effective as codebases evolve. It's the discipline that prevents a passing security audit in January from becoming a failed one in December. Without it, every feature deployment is a potential compliance event — and you won&
Docker
Container security scanners (Trivy, Grype, Docker Scout) analyze Docker images for known CVEs in OS packages and application dependencies. This guide covers running scans locally, integrating into GitHub Actions, enforcing severity thresholds, and reducing attack surface by choosing minimal base images. Every Docker image is a bundle of OS packages
Testing
Software supply chain attacks have surged in recent years. SolarWinds, Log4Shell, and the XZ Utils backdoor all shared a common thread: attackers compromised components that developers trusted implicitly. A Software Bill of Materials (SBOM) is the foundational tool that lets you know exactly what is inside your software—and whether
Testing
Distroless images contain only your application and its runtime dependencies — no shell, no package manager, no ls, no cat. They're dramatically more secure (Google reports 50%+ CVE reduction) and smaller than Alpine. But they're harder to debug and test. This guide covers how to validate distroless
Testing
In December 2020, attackers inserted a backdoor into a SolarWinds software update. In 2022, a malicious package mimicking a popular npm library was downloaded 300,000 times before removal. In 2024, the XZ Utils backdoor was only caught by accident. The pattern is consistent: software supply chain attacks work by
Testing
Container security scanning finds known vulnerabilities (CVEs) in your image's base OS packages and language dependencies before you ship them to production. Trivy is the most widely used scanner — it's fast, accurate, covers OS packages and application dependencies, and integrates with every major CI platform. This
Testing
A misconfigured S3 bucket. An RDS instance without encryption. A security group open to 0.0.0.0/0. These are the infrastructure mistakes that make headlines. Policy-as-code tools like Checkov and Terrascan catch them at write time — before terraform apply ever runs. This guide explains how both
Testing
NIST finalized its post-quantum cryptography standards in 2024: FIPS 203 (ML-KEM, based on CRYSTALS-Kyber), FIPS 204 (ML-DSA, based on CRYSTALS-Dilithium), and FIPS 205 (SLH-DSA, based on SPHINCS+). If you're running any system that encrypts data with RSA or ECDH, or signs with
Testing
Penetration testing is the practice of deliberately attacking your own system to find vulnerabilities before attackers do. For web applications, this means systematically probing every input, every endpoint, and every authentication mechanism to find what breaks. This guide covers the full pentest lifecycle for web apps — from reconnaissance through reporting
Testing
Azure Key Vault centralizes secret management, certificate storage, and cryptographic key operations.
Testing
Payment Card Industry Data Security Standard (PCI-DSS) is the compliance framework that governs how organizations handle cardholder data. Version 4.0, which became mandatory in March 2024, brings significant changes that directly affect how development teams write, test, and deploy code. If your application touches payment card data — even