Cybersecurity Analyst | Incident Response Specialist | Digital Forensics Expert

Comptia Security + Certified Cybersecurity professional specializing in incident response, digital forensics, security architecture, and application security. I investigate complex security incidents, analyze threat indicators, and develop comprehensive security frameworks. My expertise spans breach investigation, risk management, vulnerability assessment, secure software development, and compliance frameworks (ISO 27001, NIST).

Unique Background: Full-stack web development experience (React, Node.js, Express, PostgreSQL) combined with cybersecurity expertise enables me to secure applications from the ground up. I understand how developers think, how applications are built, and where vulnerabilities are introduced—making me effective in AppSec code review, security testing, and developer collaboration.

Passionate about: Protecting organizations through thorough investigation, proactive security measures, secure development practices, and evidence-based remediation strategies.

• Compliance: ISO 27001, NIST Cybersecurity Framework, NIST SP 800-53
• Methodologies: MITRE ATT&CK, TLP (Traffic Light Protocol), Threat Modeling, Risk Assessment
• Practices: Incident Response, Breach Investigation, Evidence Preservation, Forensic Analysis

• Application Security: Secure code review, OWASP Top 10 mitigation, security testing, developer training
• Secure Development: Authentication/authorization implementation, input validation, SQL injection prevention, XSS mitigation
• Incident Response: Investigation, containment, eradication, recovery
• Digital Forensics: Evidence collection, timeline analysis, malware analysis, threat hunting
• Vulnerability Management: Assessment, CVSS scoring, remediation planning
• Security Architecture: Policy development, control mapping, compliance review
• Log Analysis & Monitoring: SIEM deployment, security event detection, automation

• Application Security: Static/Dynamic analysis, security testing frameworks, threat modeling
• Development Stack: JavaScript/Node.js, React, Express, PostgreSQL, REST APIs
• Security Libraries: bcrypt, Helmet, CORS, parameterized queries, WebSocket security
• Analysis Tools: nmap, Wireshark, forensic investigation platforms
• Scripting: Bash, Python (automation, log analysis)
• Security Operations: SIEM systems, log monitoring, threat detection
• Methodologies: Penetration testing, network analysis, breach investigation

1. ⭐ Premium House Lights: The Heist — Full-scope DFIR: file-upload exploit, lateral movement mapped, exec + technical reporting.
2. ⭐ ISO 27001 Risk Management Framework — ISO-aligned risk register, controls, and roadmap with quantified scoring.
3. ⭐ Security Architecture Assessment — 18 critical control gaps, phased remediation tied to business impact.
4. ⭐ Network Scanning & Security Analysis — Nmap/Wireshark-led assessment, flat-network risk, segmentation plan.
5. Log Analysis & Monitoring Automation — Automated log collection + regex alerting with reporting.
6. LifeLabs Data Breach Investigation — Breach timeline, root cause, remediation steps.
7. Incident Response Playbooks & Procedures — Ready-to-use IR roles, comms, and checklists.
8. The Case of the Stolen Szechuan Sauce — Insider theft timeline with forensic evidence.
9. Risk & Vulnerability Assessment — Prioritized remediation roadmap and impact notes.
10. Vulnerability Assessment Framework — Critical/high findings with remediation sequence.
11. Cybersecurity Best Practices Guide — Actionable enterprise security best practices.
12. TLP Artifacts & Security Policies — TLP-classified policy set with procedures.

Web Development Projects with Security Focus - Full-stack applications demonstrating OWASP Top 10 mitigation and secure coding practices:

13. ⭐ TinyApp - URL Shortener — Authentication & Authorization Security: bcrypt password hashing, session management, access control enforcement. Demonstrates A07 (Identification & Authentication Failures) prevention.

14. Tweeter - Twitter Clone — XSS Prevention Specialist: HTML escaping, input validation, safe DOM manipulation. Real-world implementation of A03 (Injection/XSS) mitigation.

15. LightBnB - Property Rental Platform — SQL Injection Prevention: Parameterized queries, database security architecture, secure query patterns. Demonstrates A03 (Injection/SQLi) defense.

16. Interview Scheduler - React SPA — Client-Side Security: State management security, error handling, WebSocket authentication, optimistic updates with rollback.

17. Scheduler API - REST Backend — API Security Architecture: Helmet security headers, CORS configuration, environment-based secrets, WebSocket security, error disclosure prevention.

18. Lotide - JavaScript Utility Library — Secure Development Practices: TDD methodology, input validation, type safety, edge case handling, npm package security.

• 18 Professional Projects - Comprehensive security and development portfolio
• 6 Application Security Projects - OWASP Top 10 mitigation in production code
• 12 Cybersecurity Projects - Incident response, forensics, compliance, operations
• 100% Optimized - Professional badges, SEO keywords, GitHub topics
• Production Ready - v1.0.0 releases, security policies, contributing guidelines
• Complete Coverage - Full-stack development, AppSec, incident response, forensics, compliance
• Real-World Focus - Case studies, practical security investigations, and functional applications

• ✅ A01: Broken Access Control - Authorization enforcement (TinyApp)
• ✅ A03: Injection - SQL injection prevention (LightBnB), XSS mitigation (Tweeter)
• ✅ A04: Insecure Design - Secure architecture patterns (Interview Scheduler)
• ✅ A05: Security Misconfiguration - Security headers, CORS (Scheduler API)
• ✅ A06: Vulnerable Components - Dependency management (Lotide)
• ✅ A07: Identification & Authentication Failures - Password hashing, sessions (TinyApp)

• Secure Code Review - Identifying vulnerabilities in JavaScript/Node.js codebases
• Security Testing - Manual testing of auth flows, injection, error handling
• Threat Modeling - Understanding attack vectors across application layers
• Developer Collaboration - Explaining security to engineering teams
• Security Architecture - Designing secure REST APIs and client applications

✅ Comprehensive Security Knowledge - From threat detection to remediation
✅ Application Security Expertise - Secure code review, OWASP Top 10 mitigation, security testing
✅ Full-Stack Development Background - React, Node.js, Express, PostgreSQL production experience
✅ Incident Response Expertise - Real-world breach investigation experience
✅ Framework Implementation - ISO 27001, NIST compliance guidance
✅ Developer Collaboration - Speak both security and development languages fluently
✅ Technical Depth - Scripting, tool proficiency, automation capability
✅ Documentation Excellence - Clear procedures, policies, and playbooks
✅ Professional Approach - Security-first mindset, attention to detail

Developer-Turned-Security Professional: Unlike pure security professionals or senior developers learning security, I bring:

• Recent full-stack development training with security-conscious implementation
• Hands-on experience implementing authentication, authorization, input validation, and API security
• Code review capability from a developer's perspective who understands security
• Practical security testing of auth flows, injection vulnerabilities, and error handling
• Effective communication with engineering teams—I've been in their shoes

• 🔗 All Projects: https://github.com/VioletFigueroa?tab=repositories
• 📂 Pinned Projects: Check my profile pins for featured work
• 📖 Documentation: See individual project READMEs for detailed documentation
• 🔒 Security: See SECURITY.md in project repos for responsible disclosure

Latest Update: December 2025 | Interview Ready: Yes ✓

This portfolio is licensed under the Educational License. See LICENSE file for full details.

All projects are for educational and learning purposes. See individual project repositories for their specific license information.