CompTIA Security+ Certification Guide

CompTIA Security+ is the most widely adopted cybersecurity certification, validating baseline security skills. It's approved by the DoD to meet 8140/8570 requirements and is a prerequisite for many security roles.

Exam Overview

Detail	Value
Exam Code	SY0-701
Questions	90 max
Length	90 minutes
Passing Score	750 (on a scale of 100–900)
Validity	3 years
Price	~$392 USD

Domain Breakdown

Domain	Weight	Key Topics
General Security Concepts	12%	CIA triad, zero trust, defense-in-depth, authentication methods, cryptography
Threats, Vulnerabilities & Mitigations	22%	Malware, social engineering, vulnerability scanning, patch management, secure coding
Security Architecture	18%	Cloud security, virtualization, IoT, embedded systems, network segmentation, firewalls
Security Operations	28%	Incident response, digital forensics, logging, monitoring, automation, identity management
Security Program Management & Oversight	20%	Risk management, compliance, business continuity, policies, training, vendor management

Key Concepts

CIA Triad

• Confidentiality — Encryption, access controls, data classification
• Integrity — Hashing, digital signatures, version control
• Availability — Redundancy, backups, failover, DDoS protection

Authentication Methods

• Something you know — Password, PIN
• Something you have — Smart card, token, phone
• Something you are — Biometrics (fingerprint, retina, face)
• Somewhere you are — Geolocation, IP-based
• Something you do — Behavioral biometrics, keystroke dynamics

Common Attack Types

Attack	Description	Mitigation
Phishing	Deceptive emails to steal credentials	User training, email filtering, MFA
Malware	Viruses, worms, ransomware	Antivirus, application whitelisting
DoS/DDoS	Overwhelm server with traffic	Rate limiting, CDN, cloud scrubbing
Man-in-the-Middle	Intercept communication	Encryption (TLS), certificate validation
SQL Injection	Malicious SQL in input fields	Parameterized queries, input validation
Cross-Site Scripting (XSS)	Inject scripts into web pages	Output encoding, CSP headers
Social Engineering	Manipulate people to reveal info	Security awareness training

Start Security+ Practice →

Study Resources

• CompTIA Security+ Exam Objectives (official PDF)
• Professor Messer Security+ Videos (free on YouTube)
• Courses GraphWiz Practice — 70+ Security+ questions with detailed explanations
• Practice PBQs (Performance-Based Questions) — often scenario-based security configuration

Career Impact

Security+ is the gateway to cybersecurity careers:

• Security Specialist ($60k–$85k)
• SOC Analyst ($65k–$90k)
• IT Auditor ($70k–$95k)
• Cybersecurity Analyst ($75k–$100k)

Beyond Security+

After Security+, consider:

1. CySA+ — Behavioral analytics, SIEM, threat hunting
2. CASP+ — Advanced security architecture and engineering
3. CISSP — Management-level security certification
4. PenTest+ — Penetration testing and vulnerability assessment