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✅ Security Engineer Level
Security & Reliability Engineering
Complete Beginner → Advanced Syllabus (Pin-to-Pin)
🟢 LEVEL 1 — Security Fundamentals
1. Core Security Principles
- Confidentiality, Integrity, Availability (CIA)
- Defense in depth
- Least privilege principle
- Security by design
2. Threat Modeling
- Asset identification
- Threat identification
- Vulnerability assessment
- Risk prioritization
🟢 LEVEL 2 — Authentication
3. Authentication Methods
- Username/password
- Multi-factor authentication (MFA)
- Biometrics
- Hardware tokens
4. JWT & OAuth 2.0
- JWT structure & validation
- OAuth 2.0 flows
- Token expiration & refresh
- Scope management
🟡 LEVEL 3 — Authorization
5. Access Control Models
- Role-based access control (RBAC)
- Attribute-based access control (ABAC)
- Permission models
- Policy evaluation
6. API Security
- API authentication
- API authorization
- Rate limiting & throttling
- API versioning security
🟡 LEVEL 4 — Secrets Management
7. Credential Storage
- Environment variables
- Secrets managers (Vault, AWS Secrets Manager)
- Encryption at rest
- Access logging
8. Key Rotation
- Rotation strategies
- Zero-downtime rotation
- Key versioning
- Compliance auditing
🟠 LEVEL 5 — Encryption
9. Data Encryption
- Encryption at rest
- Encryption in transit
- TLS/SSL configuration
- Certificate management
10. Cryptography
- Symmetric encryption
- Asymmetric encryption
- Hashing algorithms
- Key derivation functions
🟠 LEVEL 6 — OWASP & Vulnerabilities
11. OWASP Top 10
- Injection attacks
- Broken authentication
- Sensitive data exposure
- XML external entities (XXE)
12. Prevention Techniques
- Input validation & sanitization
- Output encoding
- Parameterized queries
- Content security policies
🔵 LEVEL 7 — Infrastructure Security
13. Network Security
- Firewalls & WAF
- DDoS protection
- VPN usage
- Network segmentation
14. Container Security
- Image scanning
- Runtime security
- Admission control
- Pod security policies
🔵 LEVEL 8 — Compliance & Auditing
15. Compliance Standards
- GDPR requirements
- HIPAA compliance
- PCI DSS
- SOC 2 controls
16. Security Auditing
- Audit logging
- Log retention
- Anomaly detection
- Regular assessments
🔴 LEVEL 9 — Strategic Security
17. Incident Response
- Security incident handling
- Breach response procedures
- Data breach notification
- Recovery procedures
18. Security Culture
- Security training
- Awareness programs
- Code review security practices
- Threat intelligence sharing
⭐ Senior Frontend Focus (Must Master)
- Frontend authentication implementation
- JWT & OAuth in React/Vue apps
- XSS prevention & CSP
- CSRF protection tokens
- Secure data storage (localStorage risks)
- HTTPS/TLS browser integration
- Frontend security testing