In-depth Security articles by Senior Java Developer Pavan Rangani — practical, production-grade tutorials and engineering deep-dives. 38 articles in this category.
August 18, 2026
No error confuses developers more than a CORS error, mostly because almost everything about it is counterintuitive: it is enforced by the browser not the server, it protects the user not your API, and… Read more
August 18, 2026
A naive request counter is easy to build and easy to bypass. The rate-limiting algorithms that actually work, why limiting by IP address quietly fails, and how to layer defenses so an attacker cannot… Read more
August 18, 2026
JSON Web Tokens are everywhere and misused almost everywhere. The predictable mistakes: storing them where XSS can steal them, assuming you can log someone out, algorithm confusion, and reaching for… Read more
July 23, 2026
Security header guides list a dozen headers as equally important. They are not. Nine ranked by the attacks they actually prevent, including three that are obsolete and safe to delete. Read more
July 17, 2026
CVSS severity says nothing about whether a CVE is being exploited. Learn to combine EPSS exploit probability, the CISA KEV catalog, and reachability analysis into vulnerability prioritization that… Read more
June 12, 2026
Allowlist CSP has failed in practice. Strict-dynamic nonces plus Trusted Types close the DOM XSS gap by locking down dangerous sinks at the platform level. Read more
May 8, 2026
Practical ZTNA implementation guide covering identity-aware proxy, device posture, micro-segmentation, and migration from legacy VPN. Read more
May 8, 2026
Enterprise migration to post-quantum cryptography covering NIST PQC algorithms, TLS hybrid mode, certificate transition, and crypto inventory. Read more
April 6, 2026
Complete implementation guide for passkeys and WebAuthn passwordless authentication. Covers registration, authentication flows, and cross-device synchronization. Read more
March 26, 2026
Complete guide to Kubernetes network policies — default deny, ingress/egress rules, Cilium L7 policies, DNS policies, and zero trust implementation. Read more
March 26, 2026
Complete guide to secret scanning with GitHub Advanced Security covering push protection, custom secret patterns, incident response, and integration with secret management tools. Read more
March 26, 2026
A complete guide to implementing cloud security posture management for detecting and remediating misconfigurations across multi-cloud environments. Read more
March 23, 2026
Complete guide to implementing OAuth 2.1 with PKCE and DPoP for modern authentication including sender-constrained tokens, proof-of-possession, and migration strategies. Read more
March 22, 2026
Complete guide to Kubernetes secrets management with External Secrets Operator including AWS Secrets Manager, HashiCorp Vault, and multi-cluster secret synchronization. Read more
March 21, 2026
Complete guide to implementing API security with mutual TLS authentication and certificate pinning for zero-trust service-to-service communication. Read more
March 20, 2026
Complete guide to securing container supply chains with Sigstore Cosign for image signing, keyless verification, and Kubernetes admission policies. Read more
March 16, 2026
How attackers use LLMs for sophisticated phishing campaigns and the defense strategies — AI detection, email authentication, and training — to stop them. Read more
March 9, 2026
Comprehensive guide to software supply chain security using SLSA framework levels and Sigstore for artifact signing and provenance verification. Read more
March 9, 2026
Comprehensive guide to understanding and defending against AI-powered security threats including deepfake attacks, AI malware, and automated exploitation. Read more
March 9, 2026
Deploy Falco for container runtime security with custom detection rules, real-time alerting, and automated incident response in Kubernetes environments. Read more
March 7, 2026
Secure your software supply chain with SBOM generation, dependency vulnerability scanning, SLSA compliance, and artifact signing strategies. Read more
March 6, 2026
Design and implement zero trust security architecture with never-trust-always-verify principles, micro-segmentation, and continuous authentication. Read more
March 5, 2026
Implement secure API key management with automated rotation, centralized vault storage, least-privilege policies, and audit logging patterns. Read more
March 4, 2026
Implement OAuth 2.1 security best practices including mandatory PKCE, DPoP token binding, and the elimination of implicit and password grants. Read more
March 3, 2026
Defend against AI-powered supply chain attacks targeting model registries, training data, and CI/CD pipelines with comprehensive security strategies. Read more
March 2, 2026
Implement enterprise identity access management with OAuth2, OIDC, multi-factor authentication, RBAC/ABAC policies, and Keycloak integration. Read more
March 1, 2026
Implement least-privilege Kubernetes RBAC security with Roles, ClusterRoles, service account hardening, and audit logging for production clusters. Read more
February 28, 2026
Implement SBOM generation and vulnerability scanning with CycloneDX, SPDX, and Syft for software supply chain security compliance. Read more
February 27, 2026
Integrate security into your CI/CD pipeline with DevSecOps shift left practices. Learn SAST, DAST, SCA, and secret scanning automation. Read more
February 26, 2026
Implement runtime application self-protection (RASP) for defense-in-depth security. Learn instrumentation, threat detection, and blocking techniques. Read more
February 25, 2026
Learn how post-quantum cryptography is securing the world against quantum computing threats with new NIST standards and migration strategies. Read more
February 24, 2026
Use AI and ML-powered tools to automate vulnerability detection, penetration testing, and security code review across your application stack. Read more
February 19, 2026
Modern API security with OAuth 2.1, DPoP proof-of-possession tokens, and zero trust architecture patterns. Read more
February 16, 2026
SLSA framework, signed container images, SBOM generation, and dependency scanning for secure software delivery. Read more
February 13, 2026
Compare secrets management solutions — dynamic secrets, rotation policies, and developer workflow integration. Read more
February 10, 2026
Multi-stage builds, distroless bases, read-only filesystems, and vulnerability scanning for secure containers. Read more
February 7, 2026
Configure WAF rules for SQL injection, XSS, SSRF, and the updated OWASP Top 10 threats for 2026. Read more
January 5, 2026
Protect your APIs from abuse with token bucket rate limiting, distributed Redis counters, and proper 429 response handling in Spring Boot. Read more