Who is James Kettle?

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James Kettle: Hacking the web for a safer internet

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James Kettle is one of the most respected voices in cybersecurity today. As Director of Research at PortSwigger, he is shaping how the industry understands web vulnerabilities and digital defense. Known for his sharp, educational tone, James turns complex security concepts into engaging insights that captivate both experts and newcomers. His work blends precision, curiosity, and an unmistakable passion for making the internet more secure.

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1. Who he is

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James Kettle is a Director of Research at PortSwigger and one of the leading authorities in web security research. His groundbreaking work on HTTP desynchronization, request smuggling, and web vulnerabilities has made him a reference point in cybersecurity circles. With years of experience building and improving Burp Suite, he combines hands-on research with thought leadership that influences global security practices. James has published technical studies, presented at top conferences, and earned recognition for advancing the state of ethical hacking and secure development.

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2. A network of heavyweights

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James’s network reflects the top tier of cybersecurity and tech innovation. He connects with organizations such as HackerOne, PortSwigger, and Black Hat USA, alongside industry experts and ethical hackers. His collaborations with these communities foster transparency, education, and open-source knowledge sharing. This network reinforces his authority as a leader trusted by both industry veterans and the next generation of security professionals.

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3. Why people listen

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People follow James because his content combines clarity with technical brilliance. Each post feels like a masterclass in security delivered in simple, approachable language. He doesn’t just share research; he explains the “why” behind vulnerabilities and the “how” of prevention. His updates often include real screenshots, code examples, and personal commentary that make even advanced concepts understandable. James’s curiosity-driven approach makes cybersecurity feel human and exciting.

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4. Authenticity that resonates

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With a perfect Favikon Authenticity Score of 100/100, James sets the gold standard for credible, expert-driven content. His audience recognizes the genuine expertise behind every post, from live demos of HTTP bugs to deep-dive research updates. Comments on his posts often turn into technical discussions, with professionals exchanging insights and personal experiences. His authenticity lies in his precision: no fluff, no hype, just sharp, thoughtful communication rooted in experience.

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5. Numbers that back it up

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James has an Influence Score of 7,916 points, placing him in the top 1% of LinkedIn creators in the United Kingdom and among the top 1% in cybersecurity worldwide. His following of over 30,000 professionals grew steadily from 13,000, showing consistent community trust and engagement. His content regularly earns over 1,000 reactions per post, with dozens of meaningful comments from researchers, engineers, and CTOs. Every post is proof of the value he brings to the tech community.

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6. Collaborations that matter

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James’s work continues to shape cybersecurity education and practice across major platforms. At PortSwigger, he leads research initiatives and develops Burp Suite features used worldwide. He collaborates with HackerOne to engage the ethical hacking community in uncovering and resolving vulnerabilities. As a regular speaker at Black Hat USA and other security forums, he contributes to discussions on emerging web threats and defense strategies.

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7. Why brands should partner with James Kettle

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Partnering with James means collaborating with one of the most trusted and impactful cybersecurity experts in the field.

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• Lead thought leadership campaigns focused on innovation in digital security and responsible hacking.

• Co-create educational content such as whitepapers or webinars that decode complex security research.

• Collaborate on public awareness initiatives about safer online practices and web protection.

• Participate in conference sessions or product panels that bridge developers and security experts.

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8. Why James Kettle is relevant in 2026

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In 2026, cybersecurity is no longer optional; it’s essential. With AI-driven automation and evolving cyber threats, James’s expertise in advanced vulnerabilities and web defense is more valuable than ever. His ongoing research helps organizations anticipate risks before they happen. As digital ecosystems grow more complex, James stands at the center of global efforts to make online systems safer, smarter, and more transparent.

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Conclusion: Securing the future

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James Kettle’s influence goes beyond his technical achievements. He represents the new generation of cybersecurity leaders who see education as the most powerful tool against digital threats. His research inspires collaboration across the global tech community and ensures that progress never comes at the expense of safety. With every discovery, James moves the industry one step closer to a more secure digital world.

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