Who is Jamieson O'Reilly?

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Jamieson O’Reilly: Making Cybersecurity Cool Again

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Jamieson O’Reilly isn’t your typical cybersecurity expert. He’s the kind of creator who can make hacking culture, government data leaks, and phishing simulations sound, entertaining. As the founder of Dvuln and creator of the HackedIN newsletter, Jamieson brings a mix of dry humor, sharp insight, and real-world experience that cuts through the noise. His voice on LinkedIn feels like that of a modern hacker-philosopher who’s tired of corporate fluff and focused on the truth.

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1. Who he is

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Jamieson O’Reilly is an Australian cybersecurity innovator and founder of Dvuln, a company focused on red teaming and vulnerability management. He has built his career around penetration testing, social engineering, and cyber defense education. His posts reveal deep technical knowledge and the gritty reality of modern cybersecurity work. Through his leadership at Dvuln, he helps organizations strengthen defenses against advanced threats while fostering a culture of security awareness. Jamieson’s blend of expertise and personality makes him one of the most recognizable cybersecurity voices in Australia.

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2. A network of heavyweights

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Jamieson’s network connects him to top-tier players across tech and security. He interacts with professionals from IBM, Fortinet, Wiz, Cloudflare, and Coinbase, along with leaders in ethical hacking, penetration testing, and threat intelligence. His reach extends across cybersecurity and enterprise IT, bridging communities from Reddit to corporate defense experts. This diverse ecosystem keeps him plugged into every major conversation about data protection, security breaches, and hacker culture.

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3. Why people listen

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People follow Jamieson because he talks like a human, not a press release. His tone is unfiltered, smart, and sometimes hilariously blunt. He shares stories from the trenches, pokes fun at industry norms, and mixes memes with real analysis. Whether he’s breaking down a phishing scam or discussing burnout in red team roles, Jamieson knows how to make technical topics feel relatable. His audience appreciates his authenticity and his ability to make cybersecurity feel personal rather than procedural.

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4. Authenticity that resonates

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With an Favikon Authenticity Score of 97.5/100, Jamieson ranks among the most credible professionals in his field. His posts show natural voice, occasional typos, and storytelling drawn from genuine experiences. There’s no templated content or AI tone, just real thoughts and industry observations. His followers include experienced cybersecurity professionals who engage through technical discussions, humor, and shared war stories from the digital frontlines. Every post feels lived-in, not manufactured.

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5. Numbers that back it up

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Jamieson has built an audience of over 20,900 followers on LinkedIn, with consistent organic growth and no artificial spikes. His Influence Score of 1,816 points reflects his niche authority within cybersecurity. He ranks among the Top 5% of creators on LinkedIn in Australia and the Top 51% in cybersecurity nationally, with his HackedIN newsletter attracting 2,700+ readers. Engagement is consistently high for a technical field, with posts mixing humor, expertise, and debate among professionals who know their craft.

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6. Collaborations that matter

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Jamieson collaborates with global cybersecurity communities, startups, and security tool developers. His work has connected him with tech ecosystems linked to Reddit, Cloudflare, and Dicker Data. Through HackedIN and his company Dvuln, he promotes discussions on ethical hacking, data protection, and red team education. These collaborations help bridge the gap between corporate cybersecurity and the hacker community, driving awareness and education across audiences.

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7. Why brands should partner with Jamieson O’Reilly

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Brands looking to cut through the generic noise in cybersecurity will find in Jamieson a creator who combines credibility with personality.

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• Create educational video series or content around real security simulations and phishing awareness

• Partner for thought leadership campaigns on cybersecurity culture and incident response

• Host panels or podcasts blending expert insights with storytelling and humor

• Co-develop cyber education programs targeted at startups, SMEs, and IT professionals

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8. Why Jamieson O’Reilly is relevant in 2025

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In a year where cybersecurity is no longer optional, Jamieson stands out as a voice of reason in a sea of fearmongering. His focus on human error, communication, and transparency addresses the real causes of breaches in 2025’s hyper-digital world. As AI reshapes the cybersecurity landscape, his hands-on insights and no-nonsense tone help professionals stay grounded. He represents the next generation of cybersecurity creators who are both educators and entertainers.

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Conclusion: A voice that keeps the internet honest

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Jamieson O’Reilly brings something rare to cybersecurity: humanity. His ability to mix humor, technical depth, and storytelling makes him a refreshing figure in a field often dominated by jargon. He’s not trying to impress with buzzwords. He’s trying to make people think, laugh, and care about security. And in doing so, he’s helping redefine what it means to lead in cybersecurity in 2025.

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