20 Top Influencers in Cybersecurity for Job Seekers & Pros (USA, UK, and Canada)

One of the best ways to keep pace with the fast advancing cybersecurity scope is by following the top influencers in the field. These experts share the latest insights on emerging threats and defense strategies as they inspire and guide aspiring professionals.

This article highlights top influencers in cybersecurity in 2025, spanning multiple platforms like LinkedIn, Instagram, and YouTube. We’ll also spotlight remarkable women leaders making waves in the industry and explore the roles of leading cybersecurity companies that drive innovation and set standards. 

Whether you’re a seasoned security professional, a newcomer, or simply curious, these cybersecurity influencers are worth following for expert knowledge and practical advice.

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Why Follow Cybersecurity Influencers?

The cybersecurity world moves fast. New threats, vulnerabilities, and technologies emerge constantly, making it challenging for professionals and enthusiasts to stay current. That’s where cybersecurity influencers come in. These thought leaders provide timely updates, share practical tips, and decode complex security concepts into accessible insights.

Following cybersecurity influencers on platforms like LinkedIn and YouTube offers more than just information, it creates opportunities for engagement, mentorship, and networking. Influencers often share real-world case studies, emerging industry trends, and compliance best practices, which are invaluable for staying ahead of cyber risks. 

Moreover, many use their reach to advocate for diversity, inclusion, and ethical practices within the cybersecurity community.

If you want to learn about the latest cloud security frameworks, vulnerability management techniques, or career growth strategies, tapping into the expertise of cybersecurity influencers can fast-track your knowledge and professional development.

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Top 20 Cyber Security Experts in the US, UK, and Canada

1. Tolulope Adebayo Michael (ExcelMindCyber)

Based in the US, Tolulope Michael is the founder of ExcelMind Cyber, a game-changer in cybersecurity education. His inclusive training programs focus on practical skills in Governance, Risk Management, and Compliance (GRC), enabling over 1,000 students to secure well-paying cybersecurity jobs. Beyond teaching, Michael is an author and mentor, deeply invested in shaping the next generation of cybersecurity professionals.

2. Troy Hunt (Australia/US Influence)

Though Australian-born, Troy Hunt has a large following in the US and UK. Creator of “Have I Been Pwned?”, his influence spans continents. His courses and expert commentary on cloud security and data breaches make him a must-follow figure for anyone in cybersecurity.

3. Brian Krebs (United States)

A journalist and investigative reporter, Krebs is renowned for his in-depth coverage of cybercrime through KrebsOnSecurity.com. His reporting exposes global cybercriminal operations, making him one of the most trusted voices in US cybersecurity journalism.

4. Rinki Sethi (United States)

Currently VP and CISO at BILL, Rinki Sethi is celebrated for building high-impact security infrastructures at Twitter, IBM, and other Fortune 500 companies. Her leadership in cybersecurity strategy and innovation makes her a powerful influencer on LinkedIn and beyond.

5. Jen Easterly (United States)

Director of the Cybersecurity and Infrastructure Security Agency (CISA), Easterly leads national cybersecurity defense efforts in the US. Her experience bridges government and private sectors, providing strategic guidance on resilience and threat response.

6. Caroline Wong (United States)

Caroline Wong is a leading cybersecurity educator and author, currently serving as Chief Strategy Officer at Cobalt. Known for her approachable teaching style, she creates content focused on penetration testing and application security. Wong is also an advocate for diversity and inclusion in the cybersecurity community.

7. Mike Wilkes (United States)

A seasoned Chief Information Security Officer, Mike Wilkes has held senior roles at companies like SecurityScorecard and Sony. He is an author, educator at NYU, and a prominent speaker at industry conferences, with a focus on practical, hands-on cybersecurity leadership.

8. Dave Kennedy (United States)

Founder of TrustedSec and DerbyCon, Dave Kennedy is a cybersecurity entrepreneur and hacker with a background in the US Marine Corps. He is a pioneer in penetration testing and co-founder of the Penetration Testing Execution Standard (PTES), widely respected across the cybersecurity community.

9. Nicole Perlroth (United States)

An award-winning journalist and cybersecurity expert, Nicole Perlroth covered digital espionage and cyber warfare for The New York Times. She is an author and advisor who provides deep insights into cyber threats and policy.

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10. Andy Greenberg (United States)

Senior writer at WIRED, Andy Greenberg specializes in cybersecurity, hacking, and privacy. His investigative journalism and books like “Tracers in the Dark” offer compelling narratives on cybercrime and cryptocurrency’s dark side.

11. Kevin Mitnick (United States)

Although Kevin Mitnick passed away recently, his legacy as a former hacker turned cybersecurity consultant remains influential. His story is a cornerstone in cybersecurity history, and his books continue to educate security professionals worldwide.

12. Chris Roberts (United States)

Known for his pioneering work in aerospace cybersecurity and adversarial AI, Chris Roberts is a visionary who blends technical mastery with innovation. He’s been a key figure in pushing cybersecurity boundaries, especially around emerging technologies.

13. Jen Ellis (United States)

Jen Ellis is a cybersecurity expert specializing in vulnerability disclosure and security research. As a co-founder of the organization ‘Women in Security and Privacy’ and a frequent speaker, she champions inclusion and responsible disclosure practices.

14. Paul Asadoorian (United States)

Founder of Security Weekly, Paul Asadoorian is a passionate cybersecurity educator and practitioner. His podcasts and videos cover hacking, penetration testing, and emerging security challenges, helping build a community of security enthusiasts.

15. Shira Rubinoff (United States)

A powerhouse in promoting women in cybersecurity, Shira Rubinoff is an executive, advisor, and global keynote speaker. She combines leadership with a commitment to diversity and inclusivity, making her a standout woman top influencer in cybersecurity.

16. Graham Cluley (United Kingdom)

An award-winning cybersecurity blogger and public speaker, Graham Cluley has been demystifying security threats since the 1990s. His clear, engaging style makes complex cybersecurity topics accessible to professionals and the general public alike.

17. Fabien Weber (United Kingdom)

Fabien Weber is an experienced information security professional and ISO 27001 auditor. His work focuses on aligning security practices with business goals, especially for small and medium enterprises, helping them build resilient security programs.

18. Helen Yu (United States/UK Influence)

Helen Yu is a dynamic board director and technology strategist with extensive experience in cybersecurity risk management. She has led transformative initiatives across startups and Fortune 500 companies, known for integrating security with business growth.

19. Dean Sysman (United States)

CEO and co-founder of Axonius, Dean Sysman is a thought leader in asset management and cybersecurity infrastructure. His company’s solutions help organizations gain complete visibility and control over their security assets.

20. Tom Brennan (United States)

A US Marine Corps veteran and cybersecurity expert, Tom Brennan advises government and private sector organizations on cyber risk management and digital threat mitigation, emphasizing flexible and adaptive security programs.

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Women Top Influencers in Cybersecurity

Women have made tremendous strides in cybersecurity, breaking barriers and driving innovation in a traditionally male-dominated field. Highlighting women top influencers in cybersecurity not only celebrates their achievements but also encourages diversity and inclusion, which are vital to strengthening the security community.

Shira Rubinoff is a leading figure, known for her executive leadership, advocacy for women in tech, and global speaking engagements. She co-founded cybersecurity product companies and promotes inclusive communities, inspiring women to pursue cybersecurity careers.

Caroline Wong serves as Chief Strategy Officer at Cobalt and is renowned for her educational initiatives that simplify complex security concepts. She actively supports initiatives to increase diversity in cybersecurity through mentorship and outreach.

Jane Frankland is a leadership coach, author, and board advisor focused on empowering women in cybersecurity. She collaborates with governments and international organizations, pushing for gender diversity and inclusive leadership across the industry.

Dr. Magda Chelly founded the non-profit organization Women on Cyber and launched Singapore’s first Capture The Flag competition for girls. Her work fosters the next generation of female cybersecurity talent through education and community-building.

Rinki Sethi, VP and CISO at BILL, blends leadership with innovation, previously holding key roles at Twitter and IBM. She’s an advocate for women’s representation in cybersecurity leadership, inspiring greater diversity in the field.

Following these women on platforms like LinkedIn, Instagram, and Twitter connects you with inspiring stories, practical advice, and powerful initiatives that promote gender equality and inclusion in cybersecurity.

Cybersecurity Influencers on LinkedIn: Where Industry Pros Connect

LinkedIn has become the go-to platform for cybersecurity professionals seeking thought leadership, industry updates, and networking opportunities. The platform hosts a vibrant community where experts share insights on risk management, compliance, emerging threats, and career advice.

Many top cybersecurity influencers use LinkedIn to publish articles, engage in discussions, and offer mentorship. For example, Tolulope Michael (ExcelMindCyber) shares practical cybersecurity training tips and GRC expertise, empowering thousands of followers. Similarly, Rinki Sethi and Shira Rubinoff actively post about leadership, innovation, and inclusion in cybersecurity.

LinkedIn’s professional environment allows followers to interact directly with influencers through comments and messages, creating valuable connections that extend beyond just content consumption. The platform’s focus on professional growth makes it ideal for aspiring cybersecurity experts who want to stay current on best practices and build relationships with industry leaders.

By following cybersecurity influencers LinkedIn, professionals can tap into real-time discussions, participate in industry groups, and access exclusive webinars and events. This engagement fosters continuous learning and can open doors to career opportunities and collaborations.

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Instagram’s Top Influencers in Cybersecurity: Visual Learning and Engagement

Instagram has evolved into a dynamic platform for cybersecurity education, offering bite-sized tips, infographics, and behind-the-scenes looks into the world of digital security. Influencers on Instagram use a mix of reels, stories, and posts to demystify complex topics and engage with a diverse audience.

1. Jadejha (@itsjadejha)

Jadejha is a cybersecurity influencer who blends her expertise with lifestyle content, covering cyber, real estate, and community topics. With a following of over 86K, her engaging posts make cybersecurity relatable, encouraging a broader audience to explore the field.

2. Venicia Solomons (@cyber.queen_)

Venicia Solomons is a cloud security architect and Microsoft MVP who provides valuable resources for those looking to succeed in cybersecurity. Her Instagram features tutorials, career guidance, and motivational content, aiming to empower individuals to pursue and thrive in the cybersecurity industry.

3. Farah Hawa (@farah_hawaa)

Farah Hawa is a cybersecurity professional who shares her journey from media graduate to ethical hacker. Based in London, she offers insights into breaking into the cybersecurity field, ethical hacking practices, and personal development within the industry.

4. Stefy Gupta (@stefygupta)

Stefy Gupta is a cybersecurity influencer who combines her expertise with a passion for fashion and luxury. Recognized as one of Forbes’ Top 100 Creators, she shares content that bridges the gap between cybersecurity and lifestyle, making the field more relatable and engaging.

5. Pratham Chaudhary (@prathamchaudhary_19)

Pratham Chaudhary is a cybersecurity enthusiast who shares educational content on ethical hacking and cybersecurity practices. With a significant following, he provides tutorials, tips, and insights to help individuals enhance their cybersecurity knowledge and skills.

These influencers are reshaping how cybersecurity is perceived and learned on Instagram. By presenting information in an engaging and accessible manner, they are making the field more approachable for a global audience.

Cybersecurity Influencers on YouTube: Deep Dives and Tutorials

YouTube has become a premier platform for cybersecurity education, offering in-depth tutorials, live discussions, and expert commentary. For learners and professionals alike, YouTube channels provide valuable visual content that supplements formal training with practical demonstrations and real-world examples.

Influencers like Paul Asadoorian, founder of Security Weekly, produce podcasts and videos that explore penetration testing, threat analysis, and emerging cyber challenges. His approachable style helps viewers understand complex topics with clarity.

John Hammond, with over 2 million subscribers, uses YouTube to share free cybersecurity education and ethical hacking tutorials, helping viewers learn practical skills for securing systems.

Shira Rubinoff and Mike Miller also maintain active YouTube presences where they discuss leadership, career growth, and technical skills in cybersecurity, reaching thousands of viewers worldwide.

The visual format of YouTube enables detailed walkthroughs of hacking tools, security frameworks, and incident response techniques, making it easier for aspiring cybersecurity professionals to grasp practical skills.

Following cybersecurity influencers YouTube channels allows you to access diverse content ranging from beginner-friendly tutorials to advanced security concepts, empowering you to grow your expertise at your own pace.

Cyber Security Leader Companies and Their Influence on the Industry

Behind many of the top cybersecurity influencers are the companies leading innovation, setting industry standards, and shaping global security strategies. These cyber security leader companies not only develop cutting-edge technologies but also cultivate visionary leaders who influence the broader cybersecurity community.

ExcelMind Cyber, founded by Tolulope Michael, exemplifies this by providing accessible, practical cybersecurity education and mentorship that prepares the workforce of tomorrow. Its unique focus on Governance, Risk Management, and Compliance (GRC) alongside hands-on skills fills a critical industry gap.

Global firms like CrowdStrike, co-founded by Dmitri Alperovitch, deliver advanced threat intelligence and endpoint protection solutions, with leaders who actively shape cybersecurity discourse through research and advocacy.

Companies such as Palo Alto Networks, Fortinet, and FireEye have been at the forefront of developing Zero Trust architectures, cloud security, and incident response capabilities. Their executives regularly contribute insights on LinkedIn, conferences, and media outlets, influencing industry best practices.

Additionally, organizations like CISA under Jen Easterly’s leadership steer national cybersecurity resilience efforts, demonstrating how government agencies also play key roles in shaping security policies and education.

Following leaders from these companies and understanding their approaches offers valuable context on how cybersecurity strategies evolve and where the industry is headed.

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How to Leverage Influencers for Your Cybersecurity Career and Business

Following cybersecurity influencers is more than passive consumption, it’s an opportunity to actively boost your career and business. Here’s how to make the most of their expertise across platforms:

1. Engage and Learn: Follow influencers like Tolulope Michael, Rinki Sethi, or Graham Cluley on LinkedIn, Instagram, and YouTube. Regularly read their posts, watch tutorials, and attend webinars to stay updated on the latest threats, tools, and strategies.
   
2. Network Strategically: Comment thoughtfully on their posts and join related LinkedIn groups or Discord communities. Meaningful engagement can lead to mentorship opportunities, collaborations, and referrals.
   
3. Adopt Best Practices: Influencers often share frameworks, compliance tips, and hands-on guides. Apply these insights to your projects or business security policies to enhance resilience and demonstrate expertise.
   
4. Stay Diverse: Explore content from various voices, including women top influencers in cybersecurity and regional leaders, to gain a holistic perspective and foster inclusivity in your knowledge base.
   
5. Create Your Own Voice: Inspired by these experts, start sharing your learnings via blogs, videos, or social posts. Building your personal brand aligns you with the cybersecurity community and opens new doors.
   

By thoughtfully leveraging content from cybersecurity influencers LinkedIn, YouTube, and Instagram, you not only grow your skills but also position yourself for success in the dynamic cybersecurity landscape.

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