SunExplains — Security for Practitioners


CISSP Certified

8+ years in security

Security,
understood.
Finally.

CISSP Certified

8+ years in security

Why SunExplains is different
Written by a certified practitioner — not a content team
AI + fundamentals framing you won’t find elsewhere
Real automations and architecture refs, not just theory

8+
Years in
security
8
CISSP domains
documented
Free
Always
free
21
Practitioner
articles

S
SunExplains
Security Practitioner · CISSP
CISSP
8+ Years
Zero Trust
Cloud Sec


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CISSP Domain
Cheat Sheet
All 8 domains · Practitioner-written · Exam-focused
1

Risk & Governance

2

Asset Security

3

Architecture

4

Network Security

5

IAM

+3

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CISSP Certified8+ Years ExperienceCISSP NotesDesign ReferencesAutomationsAI and SecurityZero TrustRisk and GovernanceCloud SecurityPractitioner-Written
CISSP Certified8+ Years ExperienceCISSP NotesDesign ReferencesAutomationsAI and SecurityZero TrustRisk and GovernanceCloud SecurityPractitioner-Written

Why SunExplains

Not another security blog

01
CISSP-certified author

Every word written by someone who sat the exam, passed it, and built real security systems. Not a content agency.

Generic contentCertified practitioner
02
AI + fundamentals lens

AI makes you faster — dangerously wrong without solid fundamentals. This site exists to close that gap.

AI hypeAI + strong foundations
03
Real assets, not theory

Automations you can run, architecture references you can use, notes structured for real exam success.

Theory onlyUsable assets

CISSP Coverage

All 8 domains, broken down

View CISSP Notes →

Risk & Governance
Live
Cryptography
Coming soon
AI in Security
Coming soon
Data Security
Coming soon
Identity & Access
Coming soon
Network Security
Coming soon
Security Architecture
Coming soon
Assessment & Testing
Coming soon
Security Operations
Coming soon
Cloud Security
Coming soon

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More ways to learn

Not just a blog

A full practitioner toolkit — visuals, notes, automations, and real-world lessons. Built by a CISSP with 8+ years in the field.

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Visual Explainers
Architecture diagrams & concept maps
CISSP Notes
Domain-by-domain structured revision
Automations
Real scripts & engineering assets
Field Experiences
Lessons from real security practice