Defense in Depth
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What is Defense in Depth?
Defense in Depth is a layered security strategy where multiple security controls are strategically placed throughout an IT environment. This approach ensures that if one security mechanism fails or is bypassed, others are in place to prevent a successful attack. Think of it like an onion: you have to peel through many layers before you get to the core.
Free resources to learn Defense in Depth
More in stage 4: Security Skills and Knowledge
- Security Skills and Knowledge
- Understand Common Hacking Tools
- Core Concepts of Zero Trust
- Understand Common Exploit Frameworks
- Roles of Compliance and Auditors
- Blue / Red / Purple Teams
- Understand the Definition of Risk
- False Negative / False Positive
- Understand Concept of Runbooks
- Understand Backups and Resiliency
- True Negative / True Positive
- Understand Basics of Forensics
- Cyber Kill Chain
- Basics of Threat Intel, OSINT
- Basics and Concepts of Threat Hunting
- MFA & 2FA
- Honeypots
- Understand Handshakes
- Basics of Vulnerability Management
- Operating System Hardening
- Understand CIA Triad
- Basics of Reverse Engineering
- Understand Concept of Isolation
- Privilege Escalation
- Penetration Testing Rules of Engagement
- Basics of IDS and IPS
- Web Based Attacks and OWASP10
- Perimiter vs DMZ vs Segmentation
- Authentication vs Authorization
- Learn how Malware works and Types
- Star
- Ring
- Mesh
- Bus
- Understand the OSI Model
- Common Protocols and their Uses
- Common Ports and their Uses
- SSL and TLS Basics
- Basics of NAS and SAN
- Kerberos
- RADIUS
- LDAP
- SSO
- Certificates
- Local Auth
- SSH
- RDP
- FTP
- SFTP
- HTTP / HTTPS
- SSL / TLS
Defense in Depth: common questions
Can I learn Defense in Depth in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Defense in Depth in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Defense in Depth tutorial for beginners?
It is lesson 101 of 301 in the free Cyber Security roadmap, in stage 4, Security Skills and Knowledge. If you are new to Cyber Security, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.