Top Cybersecurity Experts 2025

Co-Founder of SG6, ITRES and DEV6. Cybersecurity consultant with a deep technical background. More than 20 years of experience in the fields of IT Security, Cybersecurity, Security Research and IT Best Practices. Dozens of acredited CVE vulnerabilities since Y2K. I publish practical offensive/defensive research: vulnerability analysis, exploitation notes, reverse engineering, and hardening/detection takeaways.

CISO and advisor helping FinTechs turn DORA/NIS2/PSD2, PCI DSS, ISO 27001, and GDPR into practical resilience and business value. 20+ years across architecture, incident response, and program build-out. I prioritise KPIs, clear board communication, and continuous improvement, not checkbox compliance. Highlights: led DORA/NIS2 readiness for cross-border teams (faster audits; 30%+ lower regulatory risk), stood up vCISO/vDPO programs with cloud-native controls, vendor risk, and privacy automation. Community: OWASP Riga and Cloud Security Alliance Chapter Lead. Need to get regulator-ready? Let’s connect.

CEO of TrustNet, a leading provider of cybersecurity and assurance services serving some…

Dr. Rishabh Das is an Assistant Professor at the Scripps College of Communication, Ohio University. With over a decade of hands-on experience in operating, troubleshooting, and supervising control systems in the oil and gas industry, Dr. Das has become a recognized leader in the field of cybersecurity. His award-winning work in developing security architectures and detection algorithms has significantly advanced the protection of legacy industrial controllers against cyber threats. Dr. Das's research portfolio is extensive, encompassing the virtualization of Industrial Control Systems (ICS), threat modeling, penetration testing in ICS, active network monitoring, and the application of Machine Learning (ML) in cybersecurity. His expertise has been sought after by military associations and commercial entities alike, guiding them in meeting their cybersecurity requirements for critical infrastructure.

With over 22 years of experience in the hosting industry, I've played a key role in developing and supporting several successful hosting companies. My expertise spans web hosting solutions, blockchain and cryptocurrency technologies, advanced technology infrastructure, domain name brokerage, artificial intelligence, technical writing, and strategic SEO implementation.

📌 Key Areas: Secure Software Engineering | Zero-Trust Security | Cloud & DevOps Security | AI for Cyber Defense | Research & Innovation | Cybersecurity Advocacy I am an award-winning Cybersecurity Professional and Software Engineer with about 10 years of experience building secure, resilient, and scalable systems that safeguard enterprises and critical infrastructures worldwide. At Microsoft, I have spearheaded high-impact security engineering initiatives across Azure, DevOps, and enterprise security driving innovations in zero-trust frameworks, system observability, automation, and AI-integrated security solutions. My contributions have fortified services relied upon by global customers while elevating industry standards in reliability, compliance, and risk management. Beyond corporate impact, I am deeply committed to advancing the cybersecurity community. As an advisor, trainer, and researcher, I actively contribute to academic publications, global workshops, and non-profit initiatives with multiple global organizations like CyberNGO, Mentors Without Borders, TCET, CHARUSAT, PARUL, MSU, Live2Serve and Many More, promoting cybersecurity awareness and training future leaders. Recognized with honors such as the Global Recognition Award 2025 and multiple CISO50 Innovation & Excellence Awards, my mission is to bridge research, engineering, and leadership to shape the future of digital trust and resilience.

Karthikeyan Ramdass a seasoned cybersecurity professional with over 18 years of experience securing mission-critical systems for leading Fortune 500 companies across industries including aviation, finance, automotive, and technology. I have played a pivotal role in protecting organizations such as Southwest Airlines, Wells Fargo, Morgan Stanley, Toyota Motors North America, AIG, Cognizant, Salesforce, and Deluxe Corporation. Specializing in application security, vulnerability management, secure architecture, and supply chain defense, led the design and implementation of enterprise-scale security frameworks, CI/CD pipelines, and advanced security testing solutions. Extensive experience in SAST, DAST, SCA, zero-day vulnerability management, and penetration testing, ensuring compliance with global standards such as NIST CSF, PCI DSS, and OWASP Top 10.

Gaurav Sengar is the Founder & CEO of ITSecOps.Cloud, a cybersecurity and IT operations consulting firm specializing in building secure, compliant, and highly reliable technology environments for SMBs, MSPs, and growing enterprises. With over 8 years of hands-on experience across cloud infrastructure, cybersecurity operations, and IT service management, Gaurav has worked extensively in SOC 2 Type II, ISO/IEC 27001, HIPAA, CMMC Level 2, and NIST 800-171 readiness programs. His work focuses on closing the gap between compliance requirements and real-world IT operations — where most organizations fail audits and suffer security incidents. Gaurav has led and executed security operations including threat hunting, incident investigations, phishing analysis, identity and access hardening, cloud security posture management, and vulnerability remediation across Microsoft Azure, Microsoft Defender, Microsoft Purview, and hybrid enterprise environments. He has supported legal investigations by tracing user activity, analyzing logs, and producing audit-defensible evidence. Unlike traditional cybersecurity advisors, Gaurav is known for his operator-first approach, combining cybersecurity strategy with deep IT operations expertise — covering cloud infrastructure, identity systems, networking, endpoint management, automation, monitoring, and 24×7 support models. This allows organizations to achieve security and compliance without disrupting business operations. Through ITSecOps.Cloud, Gaurav advises leadership teams, CISOs, and founders on cybersecurity risk reduction, compliance readiness, IT cost optimization, and scalable operations. His insights are frequently sought on topics such as cybersecurity failures in SMBs, compliance mistakes made by MSPs, cloud security risks, and how operational gaps create real-world breaches. Gaurav is particularly focused on helping organizations move from “checkbox security” to practical, auditable, and sustainable security operations.

Cybersecurity expert with over a decade and a half of deep-dive experience, I bring an unparalleled level of understanding and expertise in strategic Cybersecurity planning, effective risk control, and pioneering product innovation. My career reflects my role as a reliable authority for organizations of all sizes, as well as an effective liaison with different regulatory bodies.

Cyber Threat Intelligence Leader | Nation-State Actor Hunter | Strategic Defense Architect With over 20 years at the forefront of cybersecurity—including senior roles in national security and government defense—I specialize in threat hunting, APT campaign attribution, and intelligence-driven defense. My career spans proactive threat detection, incident response, and mentoring high-stakes SOC/CTI teams in classified environments. I’ve led national-level threat hunting operations, correlated complex TTPs using MITRE ATT&CK, and produced actionable intelligence for executive stakeholders. My expertise includes SIEM, SOAR, threat intelligence platforms, and secure infrastructure design, with a deep focus on the MENA region’s cyber threat landscape. As the author of “Inside the Hacker Hunter’s Mind” and “Inside the Hacker Hunter’s Toolkit”, I share real-world insights into state-level threat actors, OSINT, malware analysis, and digital forensics. I’m passionate about mentoring the next generation of cyber defenders and building resilient, intelligence-led security postures. Let’s connect to discuss cybersecurity challenges, threat intelligence, or how I can contribute to your mission. Key Skills: Cyber Threat Intelligence | APT Attribution | Incident Response | Threat Hunting | SIEM/SOAR | MITRE ATT&CK | OSINT | Malware Analysis | Secure Infrastructure | Executive Reporting | Python/C# Automation | MENA Threat Context

Charles Edda & Charles Bouley, Inc. (CECB) is a Texas-based cybersecurity company founded in 1999. The company specializes in managed security risk assessments, including vulnerability scanning, penetration testing, and security awareness training. Its primary clients include small businesses, medical practices, and law firms. The company is currently owned and operated by Dr. Rachel Levitch, who has expanded its services to provide advanced cybersecurity solutions that integrate financial risk management and regulatory compliance. CECB's services follow industry-recognized cybersecurity frameworks such as the National Institute of Standards and Technology (NIST), ISO 27001, and CIS Controls to help organizations establish robust cybersecurity practices and culture.

Results-oriented technology leader with over 9 years of experience in Infrastructure Security, Automation, Generative AI, and Software-Defined Operations. Demonstrated ability to lead high-performing teams, streamline enterprise support, and execute strategic initiatives that enhance organizational resilience and operational efficiency. A seasoned cybersecurity professional, experienced in vulnerability and patch management at scale, with a strong track record of driving measurable, data-driven impact through intelligent automation. Skilled in designing and implementing secure, scalable, and compliant infrastructure solutions that align with business and regulatory goals. Proven expertise in project and program management, particularly within Agile and Scrum frameworks, with a focus on cross-functional collaboration, risk mitigation, and continuous improvement. Recognized for combining technical depth with strategic vision to deliver transformative outcomes in complex enterprise environments.

As the Director of Cybersecurity at Fortra, I lead a distinguished team of cybersecurity experts in delivering Managed Security Programs to global clients. With over a decade of experience in the field, I bring a wealth of expertise in data protection, threat hunting, incident response, cybersecurity policy, IT solutions, and security systems.My mission is to empower organizations to safeguard their most sensitive data and assets against cyber threats while aligning with business objectives and regulatory standards. I thrive on sharing insights and knowledge through publications on diverse cybersecurity topics, ranging from the role of cyber executives to best practices in data security. As a strong advocate for AI and ML technology, I believe in the imperative need for organizations to mature and embrace these innovations. I actively collaborate with professionals and stakeholders to drive innovation and enhance industry standards.

Ankit Rai is a cybersecurity expert and founder of Codevirus Security, with hands-on experience in cybersecurity training, SOC operations, VAPT, and working with banks, law enforcement agencies, and academic institutions across India.

CYRX360 is a healthcare‐focused cybersecurity company dedicated to protecting medical practices, hospitals, and clinics with comprehensive, regulation-driven solutions. Our services include a 24/7 Security Operations Center (SOC), HIPAA compliance audits, endpoint & ransomware protection, secure password management, dark web surveillance, and incident response. We help organizations reduce risk, ensure patient data confidentiality, and maintain trust.

Alexia P. Idoura is a cybersecurity expert and founder of Security Done Easy, where she helps primarily women-led and lgbtq-led small businesses protect their companies without needing to be technical. She specializes in practical risk prioritization, cyber insurance readiness, phishing and fraud prevention, AI-related security risks, and translating complex cybersecurity concepts into plain English. Alexia is a Stevie Award–winning business blogger, a frequent speaker and educator, and the creator of tools and programs that help founders make confident, informed security decisions.

Driven, goal-oriented security professional, looking to enable organizations to protect themselves from ever-present malicious cyber actors and incidents. I have an innate ability to engage customers and partners at all levels and possess refined presentation skills for audiences of all sizes. I have extensive experience in working with others as part of a team as well as in positions of leadership.

For over 20 years, I've been on the front lines of cybersecurity, working with global organisations to help them answer critical questions like: "How effective are our security measures against a cyber attack?" My passion is empowering companies to identify and fortify their attack surface. I help leadership teams evaluate their security stack's effectiveness and build actionable roadmaps. Some of the topics I cover are Enterprise cybersecurity and strategy, culture and how it impacts cyber resilience. Emerging attacks and attacker innovation in ransomware and increasingly AI security risks. This passion for sharing actionable knowledge is why I also started writing my blog. It's my way of sharing ideas and providing insights for enterprise security defenders and educate the wider community. In my day-to-day role at Pentera, I lead a team of talented security engineers. We partner with leading organisations who are ready to embrace change. As a speaker and mentor, I enjoy challenging the norms, introducing disruptive technologies, and sharing best practices to raise the bar.

I am a Cybersecurity expert with ~15 years of hands-on experience in Application Security. I have a proven track record of building robust security frameworks and Security Testing Strategies to help organizations safeguard their Application landscape. I have worked with leading Industry Clients, across diverse Line of Business in implementing Vulnerability Assessment and Penetration Testing services. I am currently pivoting to AI Safety and AI Security.