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As a seasoned technologist, life-long hacker, and world-renowned security professional, I excel at tackling complex problems from unconventional angles to uncover innovative solutions. With expertise in managing multicultural environments, I bridge the gap between commercial and technical sides of businesses, aligning international teams to achieve common goals. My entrepreneurial spirit and technical acumen enable me to navigate crisis situations, chaotic business environments, and strategic changes with ease.With a deep understanding of IP networking, telecom, internet communications, security, and cloud computing, I stay ahead of the curve by exploring new technologies before they hit the market. I analyze their strategic implications, disruptive effects, and emerging opportunities, providing valuable insights to businesses.My extensive experience spans designing complex computing environments, evaluating security issues in widely used systems, including election equipment, and authoring academic studies on election security. As a co-founder of the first pan-European internet service provider EUNet, I have a proven track record of developing secure communication protocols and technologies.Since 2005, I have advised law and policy makers, national and local governments, on cybersecurity and critical infrastructure in the United States, ASEAN, and elsewhere. I work with multiple companies on security technologies, identity management, cryptography, and digital biotech applications. My expertise is also sought after for security trainings and assessments of critical infrastructure worldwide.As a co-founder and co-organizer of DEF CON Voting Village, I have played a pivotal role in shaping the global security research and hacker community. My work has been featured in two Emmy-nominated HBO documentary films, "Hacking Democracy" (2006) and "Kill Chain: The Cyber War on America's Elections" (2020), showcasing my successful proof-of-concept mock election hack and follow-up analysis on election security.

Jonathan Bar Or ("JBO") an information security expert and a hacker, focusing on binary analysis, vulnerability research, application security, reverse engineering, and cryptography.His research has uncovered critical vulnerabilities that have impacted millions of users worldwide, shaping security best practices across the industry.Frequently cited by major news outlets, his work has influenced both academia and industry, driving meaningful security improvements.

A Telco Security Researcher and Embedded System Developer with over 10 years of experience in telecommunication protocol analysis, embedded system design, and cybersecurity research. Founder and principal researcher at NOZ Berkarya Indonesia, focusing on emerging network security, OpenBTS/Osmocom stack integration, and SIEM for Telco networks. Specialized in combining radio frequency analysis, reverse engineering, and real network behavior modeling to improve detection, response, and resilience in telecom infrastructures (2G–5G). Committed to advancing Sustainable Development Goal (SDG) 9: Industry, Innovation, and Infrastructure, by fostering innovation and resilient digital infrastructure through open-source research and secure communication technologies.These are some of the results of my research that I have published.1. 2 Januari 2015 - Publication of research result at Infosec Institute with title “Introduction to RFID Security” At this research we do Reverse Engineering at ticket commuter line and make a attack scenario RFID   2. Januari 2015 - Research RFID – Berdikari Standalone RFID Reader dan Emulator At this research we do a design PCB use ATmega328P to be Reader and Emulator to do cloning RFID Tag.  • Deep learning microcontroller  • Emulate RFID Tag  • RFID cloning more than 3 tags in 1 Device   3. 12 Februari 2015 - Publication of research result at Infosec Institute with title “Introduction to Smartcard Security”At this research we learn about communication of protocol used on Smartcard EMV Debit Card and 4G Provider BOLT and implement several attack  • Deep learning about SIM Card  • Smartcard Architecture  • simulated attack identification     ◦ Physical attack: Reverse engineering, Smartcard cloning    ◦ Remote attack: IMSI catcher, OTA     4. 19 Maret 2015 - Publication of research result at Infosec Institute with title “Introduction to GSM security” At this research we learn about communication of protocol used on Handphone and BTS (base transceiver station). We do analysis using radio (Universal Software Radio Peripheral) to know type of encription used and tracking handphone location used LAC and Cell ID.  • Analisys 2G GSM Protocol  • Tracking IMSI in your area   5. 9 Juni 2015 - Publication of research result at Infosec Institute with title “Reverse Engineering of Embedded Devices”At this research we learn about how to work “broadcasters livestream” with identify all CHIP used and learning about protocol communication used, we do Reverse Engineering using Bus Pirate and Saleae Logic Analyzer.  • Device disassembly and PCB design analysis.  • Debugging Communication Protocol 1-Wire, UART, I2C, SPI, JTAG.  • Analyze the logic signals, capture sampling and decode protocol.  • extracting the firmware.  • Mapping the component Device and protocol used   6. Maret 2016 - Publication Mini Course of INFOSEC INSTITUTE with title “Advanced Pentesting Techniques with Metasploit”    • AUXILIARY — Scanners (Intermediate → Advanced). Mastery of additional modules for discovery, fingerprinting, and brute force against services  • AUXILIARY — Fuzzers (Intermediate). Find crashes/vulnerabilities in services through Metasploit's built-in fuzzing  • Credential Harvesting & Social-Engineering (Intermediate → Advanced). Technique to retrieve credentials from endpoints via post-exploit modules.  • Post-Exploitation — Privilege Escalation (Advanced).  • Post-Exploitation — Lateral Movement & Persistence (Advanced).  • IE Proxy PAC / Proxy Abuse (Attack on Browsing Infrastructure) (Advanced).  • Misc: NOP generator & Encoders (Exploit robustness / Evasion) (Advanced).  • Advanced module/payload configuration & custom Metasploit modules (Expert)   7. Desember 2018 - Research and manufacture of post-disaster telecomunication equipment. Post-disaster telecommunications equipment (portable BTS / emergency comms kit) aims to provide emergency voice/data services when commercial infrastructure is damaged. This solution involves the design of radio equipment (small/portable BTS), a standalone power system, backhaul options (satellite / microwave / cellular fallback), antenna and RF tuning, signal security, and field operations and logistics procedures.8. 24 Agustus 2019 - Publication of research result at Infosec Institute with title “Mobile Phone Tracking”At the research we learning about protocol communication between Mobile Phone and BTS (base transceiver station) working, with identification LAC , Cell ID and Timing advance (TA) we could to know where the signaling come from.   9. September 2025 – SIEM Telco Research at the research we make a idea inovasion combination of OpenBTS , Osmocom Stack , and ella-core to build a telco-aware SIEM pipeline, benefit for analysis behavior endpoint and cell realtime for detection response, low level kernel analysis behavior realtime detection response, fraud detection realtime. 

Producer at KazHackStan Conference and Managing Partner at TSARKA GROUP