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omobolajiadeyan/README.md

👋 Hi, I'm Omobolaji Adeyan

Security Engineer · Crest Hill, Illinois

LinkedIn · Email · PhishGuard AI on Marketplace


🔐 PhishGuard AI — Available on the GitHub Marketplace

I built PhishGuard AI, an explainable offline phishing detection engine for URLs and email — published as a reusable GitHub Action.

PhishGuard AI runs with zero runtime dependencies, outputs JSON and SARIF 2.1.0, and integrates directly with GitHub Code Scanning. It treats email authentication (SPF, DKIM, DMARC) as supporting evidence rather than binary pass/fail — reducing false positives from forwarded mail while keeping detection sensitivity.

  • URL, email, redirect, typosquatting, and authentication-signal analysis
  • Conservative SPF/DKIM/DMARC scoring from trusted receiver headers
  • SARIF output for GitHub Code Scanning integration
  • Public benchmark fixtures and documented model limitations
  • Scoped good-first issues open for contributors

Try it: Add omobolajiadeyan/phishguard-ai@v0.5.1 to your workflow.

Repository | Marketplace Action


🛡️ About Me

I'm a security engineer focused on building practical tools that turn noisy technical signals into clear, actionable findings. My work spans application security, threat detection, vulnerability management, cloud security, and developer-focused automation.

I hold a BS in Information Technology from Arizona State University and the CISA and CompTIA Security+ certifications. I prefer focused, well-tested contributions — scoped implementations, tests that protect the behavior being changed, and documented security boundaries.

Current areas of focus:

  • Explainable phishing and email-security analysis
  • Security regression testing for agentic and MCP-integrated systems
  • Vulnerability intelligence and CVE workflows
  • Cloud and identity security posture checks
  • Compliance evidence workflows for application-security findings

🏆 CISA — Certified Information Systems Auditor

Issued by ISACA. The CISA certification covers IS auditing, control, security, and assurance — providing a structured framework for evaluating security posture across people, process, and technology.


🤖 OWASP Agent Security Regression Harness Contributor

I contribute to the OWASP Agent Security Regression Harness — an OWASP project for executable security regression testing in agentic applications and MCP-integrated systems.

Merged: PR #150 — Added recursive validation for scenario files, directories, and glob patterns with tests and green CI. Teams can now validate entire scenario suites in a single command instead of one file at a time.


🚀 Projects

PhishGuard AI

Repository | Marketplace Action

Explainable offline phishing detection for URLs and email. Zero runtime dependencies, SARIF 2.1.0 output, GitHub Code Scanning integration, and documented model limitations. Current release: v0.5.1.

FreNiMi Checkers

Repository | Live Demo

Secure cross-platform checkers with minimax AI, real-time multiplayer, SQLite ratings, WebSocket notifications, and PWA support. Security implementation includes hashed session tokens, explicit session revocation, active-match logout protection, bounded WebSocket payloads, strict CORS, and regression tests around multiplayer state.

BehaviorSense

Repository

Behavioral anomaly detection engine for user and IP risk scoring. UEBA patterns for insider threat detection with MITRE ATT&CK mapping.

AppSec Compliance Bridge (pre-launch)

Converts application-security scan findings into traceable draft NIST SP 800-53 control mappings and POA&M evidence. Currently private while core architecture, licensing, parser security, and delivery plans are finalized.


🌍 Open Source Contributions

I prefer focused contributions tied to real issues, tests, and maintainer feedback. Selected merged work:

  • OWASP Agent Security Regression HarnessPR #150 merged recursive scenario validation for directories and globs with green CI.
  • ProwlerPR #11098 Microsoft Entra directory-sync object-takeover check, credited as co-author in the merged upstream PR.
  • OWASP cve-lite-cliPR #602 merged risk and next-action guidance for HTML vulnerability reports.
  • SecOps-NG FrameworkPR #281 merged CRA Article 13(8) support-period mapping with cited sources.
  • OpenSSF ScorecardPR #5098 extends Dangerous Workflow detection to committer-controlled GitHub Actions contexts (open for review).

For a full dated record, see OPEN_SOURCE_LOG.md.


✍️ Writing


📊 GitHub Activity

GitHub Stats


💡 Recent Public Evidence

Date Work Outcome
2026-06-18 OWASP Agent Security Regression Harness PR #150 Merged. Recursive scenario validation with tests and green CI.
2026-06-18 DEV.to Article: Batch Validation in OWASP Harness Published. First technical article.
2026-06-17 Prowler PR #11515 + merged PR #11098 Folded into upstream merged PR, credited as co-author.
2026-06-12 PhishGuard AI v0.5.1 Released reusable GitHub Action and Marketplace listing.
2026-06-12 OWASP cve-lite-cli PR #602 Merged. Risk and next-action guidance added to HTML reports.

🛠️ Technology

Python · JavaScript · TypeScript · Node.js · React · FastAPI · PHP · SQLite · PostgreSQL · Docker · GitHub Actions · SARIF · CodeQL · MITRE ATT&CK · NIST SP 800-53 · vulnerability management · cloud security tooling


🌐 Let's Connect

I'm open to senior security engineering roles, AppSec/tooling collaboration, technical advisory conversations, and community work around practical security automation.

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