Before you start thinking “ethical hacker” or “SOC analyst,” pause. The real first step? Understanding the domains, the core areas of cybersecurity that guide everything from career paths to certifications. Let’s break them down 🧵 By the end of this breakdown, you’ll know: 1. The 8 key domains of cybersecurity 2. The careers tied to each one 3. The skills & certifications you’ll need 4. Where YOU might fit best in the cybersecurity ecosystem. 1. Security & Risk Management This is the backbone of cybersecurity. You’ll work on policies, governance, compliance, legal issues, risk frameworks, and ethics. Think: CISOs, GRC analysts, compliance officers. Start with ISO 27001 or NIST frameworks. 2. Asset Security Here, you classify, protect, and manage data assets. It’s about understanding where your data lives, who owns it, how it's stored, and how it's destroyed. Think: Data Privacy Officer, InfoSec Anal CIA triad lives here: Confidentiality, Integrity, Availability 3. Security Architecture & Engineering You design systems that are secure by default. Focus on secure network and system design, cryptography, hardware/software security, and threat modeling. Think: Security Architect, DevSecOps Eng. Master this, and you build the castle. 4. Communication & Network Security You protect how data moves. Firewalls, VPNs, protocols, secure comms, network segmentation, intrusion prevention, this is your toolbox. Think: Network Security Engineer, SOC Analyst. Learn TCP/IP, OSI, MITM defense 5. Identity & Access Management (IAM) Control who gets in and what they can do. This is the gatekeeping domain, MFA, SSO, RBAC, access provisioning, IAM tools. Think: IAM Analyst, PAM Engineer, Azure AD Admin. You are the first line of defense. 6. Security Assessment & Testing Test everything. Break stuff before hackers do. From vulnerability scanning to penetration testing to red teaming. Think: Ethical Hacker, Security Tester, AppSec Engineer. If you love “finding the flaw,” this is home.