Topic: Implementation — Hardening, Encryption, Secure Protocols

🛡 Hardening Systems

Least Functionality

Turn off features you don’t need.

Less attack surface = safer system.

Patch Management

Updates fix vulnerabilities.

Delays = risk.

Baseline Configurations

Standard secure settings for every device.

🔐 Encryption Basics

Types of Encryption

Symmetric

• Same key to encrypt/decrypt

• Fast

  Examples: AES, DES (old)

Asymmetric

• Public key + private key

• Used for secure connections

  Examples: RSA, ECC