passkeys7 min read
Passkeys in 2026 — Replacing Passwords in Your Production App
How to implement passkeys and WebAuthn in production, store credentials securely, handle cross-device authentication, and design fallback strategies.
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authentication7 min read
Passkeys and WebAuthn — Replacing Passwords With Phishing-Resistant Authentication
Master WebAuthn registration and authentication flows. Learn resident credentials for usernameless login, device binding, attestation verification, and production-ready Node.js implementations.
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Payment Gateway Timeout Chaos — When Stripe Takes 30 Seconds and You Don't Know If the Charge Went Through
Stripe times out at 30 seconds. Did the charge happen? You don''t know. You charge again and double-charge the customer. Or you don''t charge and ship for free. Payment idempotency and webhook reconciliation are the only reliable path through this.
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Penetration Testing9 min read
Backend Penetration Testing — What to Test Before Your Enterprise Customers Do
Comprehensive penetration testing checklist: IDOR, authentication bypass, rate limiting, XXE, SSRF, mass assignment, GraphQL introspection, API fuzzing, and ZAP integration.
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postgres8 min read
pgvector in Production — Semantic Search and Similarity Queries at Scale
Master pgvector setup, index tuning, hybrid search patterns, and embedding pipelines for production semantic search at scale.
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