Fung

Product Manager

Having an open relationship with code, design, and marketing

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Having an open relationship with code, design, and marketing

Posts by 

Fung

Engineering

Generate & Verify HMAC Signatures in Python, Node.js, Go

Learn how to generate and verify HMAC signatures in Python, Node.js, and Go. Secure your API with practical examples, code snippets, and a free online HMAC generator.

Fung
May 28, 2025
Industry

Insecure Direct Object Reference (IDOR): Examples & API Prevention

What IDOR is, how it happens in web & APIs, real-world examples, and a practical checklist to prevent object-level authZ bugs (BOLA).

Fung
May 28, 2025
Industry

Comprehensive Guide to Cryptographic Failures (OWASP Top 10 A02)

Learn what cryptographic failures are, see real-world examples, and get OWASP best practices to secure data in transit & at rest.

Fung
May 28, 2025
Engineering

OTP Bypass: How OTP Bots Beat SMS 2FA (+ Fixes)

See how OTP bot apps bypass SMS 2FA and ship fixes fast: adaptive CAPTCHA, entity rate limits, risk scoring, and Authgear fraud protection.

Fung
May 28, 2025

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