
Sealed Secrets vs External Secrets Operator vs SOPS
Three GitOps secret patterns for Kubernetes. Sealed Secrets for pure GitOps, ESO for upstream-store sync, SOPS for Helm-heavy workflows. Decision matrix.
Secure your infrastructure and applications. TLS certificates, OAuth 2.0 flows, firewall rules, zero trust architecture, and vulnerability management for production systems.
30 articles

Three GitOps secret patterns for Kubernetes. Sealed Secrets for pure GitOps, ESO for upstream-store sync, SOPS for Helm-heavy workflows. Decision matrix.

Eight realistic alternatives: Vault for dynamic, Doppler for DX, Infisical for OSS, Parameter Store for free tier. Migration effort and decision matrix.

A detailed comparison of AWS WAF and AWS Network Firewall covering Layer 7 vs Layers 3-7 inspection, pricing, Terraform deployment examples, and a decision framework for choosing the right service.

An honest comparison of JWT and session token authentication. Covers JWT structure, signing algorithms (RS256 vs HS256), common vulnerabilities, the revocation problem, and when each approach is the right choice for your architecture.

Anatomy of supply chain attacks (xz-utils, SolarWinds, event-stream), SBOM generation with Syft and Trivy, Sigstore keyless signing, dependency scanning tools compared, and the SLSA framework.

Passkeys use FIDO2/WebAuthn public-key cryptography to eliminate passwords entirely. Learn how they work, how to implement them, and how to handle device loss with synced passkeys.

AWS Secrets Manager is a secret store; Vault is a secrets service. Full head-to-head on pricing at three scales, rotation vs dynamic secrets, auth methods, Kubernetes integration, and migration paths — with the decision table I use before writing any config.

Automate TLS certificates with Let's Encrypt, ACME protocol, and cert-manager in Kubernetes. Covers HTTP-01, DNS-01, wildcards, private CAs, and expiry monitoring.

SSRF lets attackers reach internal services through your server. Learn how cloud metadata endpoints amplify the risk and how to defend against SSRF.
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