📘Study Focus | Domain 7: Security Operations

📘 Domain 7: Security Operations

🔑 Flashcard Topics (Sequence-Heavy, Forensics-Focused, Operational Traps)

🚨 Incident Response (IR)

🔁 Incident Response Lifecycle (NIST 800-61)

  • Preparation → Detection → Analysis → Containment → Eradication → Recovery → Lessons Learned

🧬 Order of Volatility (OOV)

  • 1. CPU registers → 2. RAM → 3. Disk → 4. Remote logs/archives

📜 Chain of Custody

  • Formal documentation of who handled evidence and when

🧪 Forensics Basics

  • Imaging = Bit-for-bit copy of a drive

  • Hashing (MD5/SHA) = Ensures forensic integrity

  • Write Blocker = Prevents data modification during acquisition

  • Time Offset = Accounts for time zone in log analysis

🧯 Disaster Recovery & Business Continuity

📆 Key Recovery Metrics

  • RTO (Recovery Time Objective) = Max time to restore

  • RPO (Recovery Point Objective) = Max data loss tolerated

🛠️ BCP vs DRP

  • BCP = Ensures business continues

  • DRP = IT system restoration after a disaster

💼 Personnel Security

  • Separation of Duties = Prevents fraud; no one person controls all parts

  • Job Rotation = Reduces risk, detects fraud

  • Mandatory Vacations = Detects long-running schemes

📦 Backup Types & Strategies

  • Full = All files

  • Incremental = Since last backup of any type

  • Differential = Since last full backup

  • Grandfather-Father-Son = 3-level rotation strategy

🧰 Monitoring and Detection

🔍 SIEM (Security Info & Event Mgmt)

  • Correlates logs across systems for threat detection

🚧 Honeypot vs Honeynet

  • Honeypot = Decoy system

  • Honeynet = Group of honeypots

🛑 DLP (Data Loss Prevention)

  • Detects/prevents data exfiltration (email, USB, cloud)

🧨 Malware and Threat Types

  • Rootkit = Hides itself at OS level

  • Logic Bomb = Malicious code triggered by event/date

  • Trojan = Malware disguised as legit software

  • Polymorphic Malware = Changes its code to evade detection

🚫 Physical Security Controls

  • Mantrap = Two-door access control

  • Faraday Cage = Blocks electromagnetic signals

  • CCTV = Provides deterrence + evidence

  • Guards = Active deterrence; reactive capability

📡 Media & E-Waste Handling

  • Degaussing = Demagnetize tape or disk

  • Shredding = Physical destruction of paper/data

  • Burning/Incineration = Final destruction

  • Pulverizing = Crush physical media (e.g., hard drives)

🧬 Configuration and Change Management

  • Configuration Management = Maintain consistent, secure system settings

  • Change Control = Approval, testing, rollback before deployment

Domain 7 can feel like common sense — but the test twists it with procedural nuance. Drill sequence-based concepts and forensic processes hard.


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