RFS - Security Researcher
Security Researcher

RFS

Senior Penetration Tester / Security Researcher

Professional in Unified Communications Security, Signals Intelligence, and Red Team operations. Bringing a wealth of experience to our penetration testing tools and articles.

Biography

RFS is a distinguished security researcher and penetration tester with over 15 years of experience in telecommunications security. Specializing in mobile network security, signaling protocols, and unified communications, RFS has contributed significantly to the field through research, tool development, and vulnerability discoveries.

With expertise spanning from legacy 2G/3G networks to modern 5G infrastructure, RFS has conducted security assessments for major telecommunications providers worldwide, identifying critical vulnerabilities and helping secure essential communications infrastructure.

As a red team operator, RFS has developed specialized methodologies for testing telecommunications security, including custom tools for SS7, Diameter, SIGTRAN, and SIP protocol analysis. These methodologies have been adopted by security teams globally to improve their security posture.

RFS is committed to sharing knowledge with the security community through research publications, open-source tools, and comprehensive educational resources on telecommunications security.

Certifications & Qualifications

  • OSCP
    Offensive Security Certified Professional
  • OSCE
    Offensive Security Certified Expert
  • CISSP
    Certified Information Systems Security Professional
  • GXPN
    GIAC Exploit Researcher and Advanced Penetration Tester
  • MSc
    Master of Science in Cybersecurity

Speaking Engagements

  • Black Hat USA 2024
    5G Security: Attacking the Next Generation
  • DEF CON 32
    Breaking Diameter: New Attack Vectors in 4G Networks
  • GSMA Mobile 360 Security Conference
    Securing Telecommunications Infrastructure
  • RSA Conference 2023
    Signaling Attacks: From SS7 to 5G
  • CCC (Chaos Communication Congress)
    SIM Card Security: Past, Present and Future