Security Essentials Cheat Sheet

Last Updated: November 21, 2025

Defense Layers

Layer Focus
Network Firewalls, VPCs, WAF
Identity MFA, least privilege, SSO
Application Runtime protections & logging

Authentication Hardening

Enable MFA
Use TOTP hardware or push authenticators
Use short-lived tokens
Prefer federated creds over long API keys
Audit IAM access
Review unused rights monthly

Incident Response

Prep communication channels, assemble the triage posse, contain blast radius, then run post-mortems.

💡 Pro Tip: Rotate secrets on a schedule and treat IAM policies as code reviews.
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