experience // capabilities // background

Résumé

Threat research leadership grounded in nearly two decades of hands-on work across industrial systems, infrastructure, and adversary operations.

Stephen Joseph Hilt II

Principal Threat Researcher

ICS Security · Reverse Engineering · Cybercrime Intelligence

Research lead focused on securing industrial control systems and critical infrastructure. Nearly two decades tracking cybercrime and state-aligned operations, with deep experience in protocol fuzzing, RF analysis, campaign attribution, honeypots, public reporting, and security assessments.

Principal Threat Researcher

TrendAIMar 2026 — Present
  • Lead cybercrime and underground research into threat actors, illicit markets, and emerging criminal operations.
  • Drive strategic threat intelligence initiatives across ICS/OT and critical infrastructure.
  • Mentor research teams on threat analysis, campaign attribution, and public reporting.
  • Author technical reports and present research at security conferences.

Senior Threat Researcher

TrendAIApr 2015 — Mar 2026
  • Led research on cybercrime, state-aligned operations, and emerging threats.
  • Designed, deployed, and monitored distributed honeypots.
  • Researched RF technologies for ICS/OT detections and investigations.
  • Authored reports and presented findings at conferences worldwide.

ICS Security Consultant

Digital Bond Inc.Apr 2013 — Apr 2015
  • Led control-system security assessments and gray/black box engagements.
  • Built ICS-focused Nmap scripts including ENIP-info, S7-info, and BACnet-info.
  • Performed protocol fuzzing in Python and Ruby; presented S4x14 “PLCPwn.”
  • Conducted RF assessments with GNU Radio, KillerBee, and RFCat; developed custom Nessus audits and the S4x15 ICS CTF.

Senior Information Security Specialist

Tennessee Valley AuthorityMar 2009 — Apr 2013
  • Implemented and maintained Tenable SecurityCenter across IT and OT environments.
  • Led control-system assessments, penetration tests, and regulatory testing for FISMA and NERC.
  • Presented to the ICS Joint Working Group and developed scenarios for DHS CyberStorm III and GridEx.
  • Served as NERC CIP SME for CIP-005/007 and held a US Secret clearance.

Real-time Process Systems Specialist

Tennessee Valley AuthorityAug 2006 — Mar 2009
  • Designed OSPF and managed control-system networks, SSL VPN, and RSA SecurID.
  • Administered Cisco PIX/ASA/WLC, routing and switching, CA Spectrum, and Cisco ACS.
  • Performed Nessus and IBM AppScan vulnerability testing across IT and OT.
  • Completed advanced Red Team training through the National SCADA Test Bed.

Systems Administrator

SIU–Carbondale, Curriculum & InstructionAug 2004 — May 2006
  • Administered SUSE/Red Hat, macOS Server, and Windows Server 2003.
  • Managed Mac labs and departmental core services.