TCP/IP Fundamentals
Learning Objective
Understand the cybersecurity industry, major domains, career opportunities, and growth paths.
What is Cybersecurity?
Cybersecurity is the practice of protecting:
- Systems
- Networks
- Applications
- Data
- Cloud Platforms
- Industrial Infrastructure
from unauthorized access, cyberattacks, disruptions, and misuse.
Cybersecurity is no longer an IT problem.
It is a business survival requirement.
Why Cybersecurity Matters
Modern organizations rely heavily on:
- Digital Banking
- Cloud Computing
- Smart Manufacturing
- Artificial Intelligence
- IoT Devices
- Remote Work Infrastructure
A successful cyberattack can result in:
- Financial Loss
- Operational Downtime
- Regulatory Penalties
- Reputation Damage
Industry Example
Colonial Pipeline Ransomware Attack (2021)
Colonial Pipeline ransomware attack
Impact:
- Fuel shortages across multiple U.S. states
- Millions of dollars in losses
- National-level disruption
Lesson:
Cybersecurity affects physical operations and national infrastructure.
Cybersecurity Career Domains
Security Operations (SOC)
Responsibilities:
- Monitor alerts
- Investigate incidents
- Respond to threats
Entry Roles:
- SOC Analyst L1
- Security Operations Associate
Cloud Security
Responsibilities:
- Secure AWS
- Secure Azure
- Cloud compliance
Roles:
- Cloud Security Engineer
- Cloud Security Analyst
Vulnerability Management
Responsibilities:
- Identify vulnerabilities
- Prioritize risks
- Coordinate remediation
Roles:
- Vulnerability Analyst
- Risk Analyst
Governance Risk & Compliance (GRC)
Frameworks:
- ISO 27001
- NIST
- CIS Controls
Roles:
- Risk Analyst
- Compliance Analyst
Industrial Security
Protects:
- SCADA Systems
- PLCs
- Smart Factories
Roles:
- OT Security Analyst
- Industrial Security Engineer
Industry Framework Mapping
ISC2 CC
Domain 1:
Security Principles
Security+
Domain:
Security Concepts
NIST CSF
Identify Function
