Cybersecurity

A Beginner Guide to Penetration Testing

An introduction to ethical hacking phases, vulnerability identification, and threat modeling.

An Introduction to OAuth 2.0 Authorization Code Flow

A guide to secure user delegate authentication, tokens exchange, and identity provider configs.

Secure Password Hashing with Argon2 in Modern Backend

An explanation of hash computation costs, salts, and password hashing algorithms.

Implementing Cross-Origin Resource Sharing (CORS) Safely

Understand browser security policies, preflight options requests, and CORS configuration headers.

Quantum Computing: The Threat to Classic Cryptography

Understand how Shor's algorithm threatens modern RSA encryption.