Our Authors

David Martin is a Partner Account Manager and has three decades of experience across various organisations within the IT sector. He has worked with small startups and large multinational companies. He also founded his own company focused on enhancing early-stage start-up commercialisation efforts. David currently manages Progress' partner relationships in the UK and Ireland. He has a Master of Arts in Marketing from the UK’s University of Lincoln and has studied at INSEAD, Europe’s premier business school in Fontainebleau, France.

David Schiffer is RevBits’ Chief Executive Officer. David Schiffer’s career spans several decades of mathematics and computer science endeavors. He began his career in both technology and international business, after earning two Master’s Degrees in Math and Computer Science. David is the Co-Founder of two technology companies. Prior to co-founding RevBits, he was the Founder and CEO of Safe Banking Systems, which was sold to Accuity / RELX after almost twenty years in business.

Dennis Müllerschön is a Principal in the Risk & Compliance Excellence division at Horváth, specializing in Information and Cyber Security solutions. He has extensive expertise in cyber security, risk management, IT compliance, and management control for national and international clients. His work focuses on developing and implementing holistic cyber security strategies, governance frameworks, risk assessments, and transformation programs. He helps clients strengthen their cyber resilience and ensure compliance with regulatory requirements.
Dennis holds a B.Sc. in Technology and Management-Oriented Business Administration from the Technical University of Munich and an M.Sc. in Accounting & Financial Management from the Stockholm School of Economics. He has been with Horváth since 2014.

Regional Vice President DACH at Regional Vice President DACH

Dotan Nahum is the CEO and founder of Spectral, a developer-first cybersecurity company. Dotan is also an experienced software developer and open-source committer since 1999 with over 100 open source projects of which some are used by Fortune 500 companies like Accenture, as well as public companies such as Wix, and others.

His vast experience as CTO at HiredScore and CTO at Como (Conduit Mobile), and later at fintech unicorn Klarna allowed him to promote engineering culture and effectiveness in Israel by scaling products and companies through building resilient distributed systems, leading cybersecurity strategies, big data analytics, and open source. Dotan is also a 4 times tech author (Packt, Leanpub, among others) and a host of 2 podcasts (Reversim and RTCZ.io) dealing with developers and cybersecurity.

Dotan Nahum is the Head of Developer-First Security at Check Point Software Technologies. Dotan was the co-founder and CEO at Spectralops, which was acquired by Check Point Software, and now is the Head of Developer-First Security. Dotan is an experienced hands-on technological guru & code ninja. Major open-source contributor. High expertise with React, Node.js, Go, React Native, distributed systems and infrastructure (Hadoop, Spark, Docker, AWS, etc.)

Dr. Brett Walkenhorst is Chief Technology Officer at Bastille. Dr. Walkenhorst is the CTO of Bastille where he leads R&D efforts to enhance product performance and add new capabilities. He 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. James Norrie, Founder & CEO of cyberconIQ. Norrie has more than 30 years of experience in business management, psychology and the cybersecurity industry. He was the Founding Dean of the Graham School of Business at York College of Pennsylvania and is currently a tenured faculty member at the school.

Dr. Lev Streltsov works as a consultant at the international management consultancy Horváth, where he leverages his academic and practical experiences to assist companies in tackling their cybersecurity challenges. He is also author of multiple international publications, lectures, and presentations on cybercrime, cybersecurity, and related topics. With an original background in law, he defended his PhD on the aspects of legal protection of digital IP. His post-doctoral research on cybercrime at the Max Planck Institute for Foreign and International Criminal Law led him to a deeper understanding of both the significance and multidisciplinary nature of cybersecurity. With support from the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), Dr. Streltsov has been involved in research and knowledge transfer in Ukraine, including providing expert opinions on draft legislation.

Bio: Dr. Livia Brandt (fictional)

Dr. Livia Brandt is a Principal Analyst for Identity Adversary Research at Northbridge Cyber Intelligence, where she focuses on the collision point between modern authentication, social engineering, and cloud identity abuse. Her work maps how attackers operationalize credential theft, token replay, and privilege escalation across SaaS-heavy environments—and how defenders can shift from “logged-in equals trusted” to continuous, context-driven verification.

Before joining Northbridge, Brandt led incident-driven research for a European security consultancy, supporting response teams on business email compromise, MFA fatigue campaigns, and cloud directory intrusions. She is known for translating messy, real-world attack patterns into pragmatic controls—phishing-resistant authentication, least-privilege baselines, and identity telemetry that actually catches abuse.

Brandt holds a PhD in applied security systems, speaks regularly at industry forums, and advises organizations on identity hardening programs that scale without turning IT into a bureaucracy. When she’s not writing about identity threat detection, she’s usually pushing for one unfashionable idea: fewer exceptions, cleaner privilege, better outcomes.

Dr. McAlmont is CEO of NINJIO Cybersecurity Awareness Training, and is one of the nation’s leading education and training executives. Prior to NINJIO he served as President of Career and Workforce Training at Stride, Inc., had a decade-long tenure at Lincoln Educational Services, where he was President and CEO, and also served as CEO of Neumont College of Computer Science. His workforce and ed tech experience is supported by early student development roles at Stanford and Brigham Young Universities. He is a former NCAA and international athlete, and serves on the BorgWarner and Lee Enterprises boards of directors. He earned his doctoral degree in higher education, with distinction, from the University of Pennsylvania, a master’s degree from the University of San Francisco, and his bachelor’s degree from BYU.

Dr. Khera is a veteran cybersecurity executive with more than two decades worth of experience working with information security technology, models and processes. He is currently the Chief Strategy of ITSEC Group and the Co-founder and CEO of ITSEC (Thailand). ITSEC is an international information security firm offering a wide range of high-quality information security services and solutions with operation in Indonesia, Malaysia, Philippines, Singapore, Thailand and Dubai.

Previously the head of cyber security Presales for NOKIA, Dr. Khera has worked with every major telecom provider and government in the APAC region to design and deliver security solutions to a constantly evolving cybersecurity threat landscape.

Dr. Khera holds a Doctor of Information Technology (DIT) from Murdoch University, a Postgraduate Certificate in Network Computing from Monash University and a Certificate of Executive Leadership from Cornell University.

Dr. Khera was one of the first professionals to be awarded the prestigious Asia Pacific Information Security Leadership Awards (ISLA) from ISC2 a world-leading information security certification body under the category of distinguished IT Security Practitioner for APAC.