David Jacoby – Ethical Hacker, Cybersecurity Expert & Professional Internet Troublemaker (For the Good Guys)
For over 30 years, David Jacoby has been hacking things (ethically, of course)—finding vulnerabilities, writing security tools, pen-testing systems, and even submitting bugs for bounty programs. Basically, if there’s a way in, he’s probably found it.
He has played a key role in multiple cybersecurity companies, including Outpost24, Truesec, and more recently Unbreached and the Threat Prevention Center, with a mission to give small and mid-sized businesses the same top-tier security as the big players.
These days, he’s leading the strategy for Syndis, an innovative IT security company originating from Iceland focused on unhacking the planet with hacker based services such as offensive secuity, customized L3 security operating centers and professional management consultants.
David isn’t just about breaking (and fixing) security—he’s also a award winning seasoned speaker, educator, and security evangelist. His live hacking demos and cybercrime insights have captivated audiences worldwide, making complex security topics understandable, practical, and even entertaining.
Beyond corporate security, David has left his mark in pop culture and media. He’s a technical advisor for major projects, including the Millennium book series (yes, the one with Lisbeth Salander), the TV show HACKAD, and more. He has also contributed to industry-renowned books like:
His work has been featured everywhere, from Forbes and The Economist to Dagens Nyheter, Expressen, and Aftonbladet. You may have even seen him on TV, podcasts, or news platforms, explaining why your passwords are terrible and why hackers love them.
David is an ambassador for HackShield, a platform that turns cybersecurity education into a game for kids (because let’s face it, they’re the future hackers—might as well train them right). He’s also a strong supporter of Childhood, working to protect children from online exploitation and digital threats.
David has shared his expertise at some of the biggest cybersecurity and tech conferences around the world, including:
Need a speaker, security consultant, or expert insight on digital defense? David's your guy. Just don’t ask him for his WiFi password.
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