Meet our Research Team

We're a team of world-leading radio security experts, including DARPA challenge winners.

What We Do

The Bastille research team is a specialized group of cybersecurity engineers and wireless security experts who focus on identifying and analyzing threats in the radio frequency spectrum. Led by experts in software-defined radio and data science, the team researches wireless protocols across the electromagnetic spectrum to understand device behavior, reverse-engineer RF communications, and develop detection techniques for malicious wireless activity. Their work spans multiple domains including wireless airspace defense, OT/ICS security, and RF threat intelligence, combining deep technical knowledge of radio theory, signal propagation, and protocol analysis to uncover vulnerabilities in wireless devices and protect organizations from emerging threats like data exfiltration, unauthorized wireless access, and attacks on IoT and industrial control systems.

Dr. Brett Walkenhorst

Chief Technology Officer

Dr. Walkenhorst has over 20 years of experience as a technology leader in RF systems and signal processing. Prior to Bastille, he led and executed R&D efforts at Lucent Bell Labs, GTRI, NSI-MI Technologies, Silvus Technologies, and Raytheon Technologies.

His experience includes RF system design, communications systems, antenna design/testing, radar, software-defined radios, geolocation, and related topics.

He has authored over 70 publications including papers, articles, and reports, has taught numerous graduate, undergraduate, and professional short courses, and has served as an expert witness on multiple occasions. He is a senior member of IEEE and has served as the Chair of the Atlanta Chapter of the IEEE Communications Society.

Dr. Brett Walkenhorst

Chief Technology Officer

Dr. Walkenhorst has over 20 years of experience as a technology leader in RF systems and signal processing. Prior to Bastille, he led and executed R&D efforts at Lucent Bell Labs, GTRI, NSI-MI Technologies, Silvus Technologies, and Raytheon Technologies.

His experience includes RF system design, communications systems, antenna design/testing, radar, software-defined radios, geolocation, and related topics.

He has authored over 70 publications including papers, articles, and reports, has taught numerous graduate, undergraduate, and professional short courses, and has served as an expert witness on multiple occasions. He is a senior member of IEEE and has served as the Chair of the Atlanta Chapter of the IEEE Communications Society.

Dr. Bob Baxley

Chief Scientist

For more than a decade, Dr. Bob Baxley has been a technology leader in implementing machine learning algorithms for software defined and cognitive radios. At Bastille, Bob serves as Chief Scientist where he leads the development of research into systems to sift through massive amounts of radio frequency data to protect enterprises from radio threats.

Prior to co-founding Bastille, Bob was the Director of the Software Defined Radio Lab at Georgia Tech, where he led basic and applied research projects for organizations including NSF, ONR, Army, DoD, Air Force and DARPA.

Bob has published more than 100 peer-reviewed papers and patents, is the receipt of various research awards, and is a Senior Member of the IEEE. He also led the GTRI team that competed in the DARPA Spectrum Challenge and placed second out of 90 teams.

Dr. Bob Baxley

Chief Scientist

For more than a decade, Dr. Bob Baxley has been a technology leader in implementing machine learning algorithms for software defined and cognitive radios. At Bastille, Bob serves as Chief Scientist where he leads the development of research into systems to sift through massive amounts of radio frequency data to protect enterprises from radio threats.

Prior to co-founding Bastille, Bob was the Director of the Software Defined Radio Lab at Georgia Tech, where he led basic and applied research projects for organizations including NSF, ONR, Army, DoD, Air Force and DARPA.

Bob has published more than 100 peer-reviewed papers and patents, is the receipt of various research awards, and is a Senior Member of the IEEE. He also led the GTRI team that competed in the DARPA Spectrum Challenge and placed second out of 90 teams.

Jon Bundy

Wireless Threat Researcher

Jon is a cybersecurity engineer and architect with expertise in security, OT, ICS, SCADA, IT, networking, Linux, databases, scripting, and other technical domains. His specialty is Wireless Airspace Defense, where he researches wireless protocols to understand their behavior and develops detection techniques for malicious activity and various wireless attacks.

Jon brings a broad engineering background in cybersecurity, cloud technologies, software, and IT. He possesses a deep technical knowledge required for tactical threat research.

Jon holds an MS in Civil and Environmental Engineering from the University of Wisconsin-Madison, specializing in Geospatial Information Engineering, along with an MBA. His certifications include GICSP, CISSP, OSCP, OSWP, PenTest+, CCSP, CCNA, ITIL, PMP, CSM, and CSPO.

Jon Bundy

Wireless Threat Researcher

Jon is a cybersecurity engineer and architect with expertise in security, OT, ICS, SCADA, IT, networking, Linux, databases, scripting, and other technical domains. His specialty is Wireless Airspace Defense, where he researches wireless protocols to understand their behavior and develops detection techniques for malicious activity and various wireless attacks.

Jon brings a broad engineering background in cybersecurity, cloud technologies, software, and IT. He possesses a deep technical knowledge required for tactical threat research.

Jon holds an MS in Civil and Environmental Engineering from the University of Wisconsin-Madison, specializing in Geospatial Information Engineering, along with an MBA. His certifications include GICSP, CISSP, OSCP, OSWP, PenTest+, CCSP, CCNA, ITIL, PMP, CSM, and CSPO.