Thomas W.

"Top Rated Plus" cybersecurity consultant and published author with 25+ years of experience specializing in penetration testing. Clients hire me when they need senior-level testing that includes clear scoping, reporting that drives remediation, and efficient execution. I’ve led red team and penetration testing work for Fortune 100 enterprises, government agencies, and startups. My assessments are designed to simulate realistic attacker behavior, prioritize what matters most, and produce results that are easy for technical teams to reproduce and fix. Areas of expertise: * Web application testing (OWASP Top 10, authentication/session flaws, access control, input validation, SSRF, IDOR, RCE) * API testing (token/session handling, authorization boundaries, input validation, business logic, fuzzing where appropriate) * Internal and external network testing (Windows, Linux, hybrid) with segmentation and control validation * Active Directory testing (enumeration, privilege escalation simulation, attack path validation) * AWS and Azure security reviews (misconfigurations, IAM privilege analysis, exposure discovery, logging and monitoring validation) * Compliance-aligned testing and guidance (PCI DSS, HIPAA, CIS, NIST and more) What you can expect: * Strong communication, documented scope, and no surprises * Findings prioritized by real-world impact, not just scanner output * Executive summary plus actionable remediation steps your team can use immediately * Optional live debrief and remediation testing Certifications: CISSP, CCSP, ISSMP, AWS Security Specialty, AWS Solutions Architect, CCNP Security, and more. Published author of multiple penetration testing books and a frequent security conference speaker.