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Security — Complete Guide

Security fundamentals for system design: authentication, authorization, encryption, OAuth, JWT, rate limiting, and DDoS protection.

8 articles• 10 tools

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📚 Articles (8)

🔐Security

API Security: Comprehensive Guide to Protecting Your APIs

APIs are the backbone of modern applications, connecting frontends, mobile apps, microservices, and third-party integrations. This makes them a prime attac...

📖 8 min read•
🔐Security

Authentication vs Authorization: Understanding the Two Pillars of Security

Security in modern systems relies on two fundamental concepts: authentication and authorization. While often used interchangeably, they serve entirely diff...

📖 8 min read•
🔐Security

DDoS Protection: Defending Your Systems Against Distributed Attacks

Distributed Denial of Service (DDoS) attacks remain one of the most disruptive threats to online services. By overwhelming systems with massive volumes of ...

📖 7 min read•
🔐Security

Encryption: Symmetric, Asymmetric, TLS, and Key Management

Encryption is the foundation of data security. It transforms readable data into an unreadable format that can only be reversed with the correct key. From p...

📖 8 min read•
🔐Security

JWT (JSON Web Tokens): Structure, Security, and Best Practices

JSON Web Tokens (JWTs) are the backbone of modern authentication and authorization in web applications and APIs. They provide a compact, self-contained way...

📖 8 min read•
🔐Security

OAuth 2.0: The Complete Guide to Authorization Flows and Security

OAuth 2.0 is the industry-standard protocol for authorization. It enables applications to obtain limited access to user accounts on third-party services wi...

📖 8 min read•
🔐Security

Rate Limiting for Security: Protecting Your Systems from Abuse

Rate limiting is one of the most effective first lines of defense against a wide range of security threats. From brute force login attacks to DDoS attacks ...

📖 8 min read•
🔐Security

Zero Trust Architecture: Never Trust, Always Verify

The traditional network security model — a hard perimeter protecting a soft interior — is broken. Cloud computing, remote work, and microservices have diss...

📖 8 min read•

❓ Frequently Asked Questions

What is the difference between authentication and authorization?

Authentication verifies who you are (identity). Authorization determines what you can do (permissions). Both are essential for secure systems.

What is Zero Trust security?

Zero Trust is a security model that never trusts any user or system by default, even inside the network. Every request must be verified, authenticated, and authorized.