DAVID JACOBY

I AM
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Hacker · Researcher · Speaker · Author · Advisor · Nerd

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David Jacoby
© Julia Olsson

David Jacoby

Ethical Hacker · Cybersecurity Expert
Professional Internet Troublemaker (for the good guys)

For more than 30 years, David Jacoby has been thinking like an attacker and working like a defender. He began in the underground hacking era, long before cybersecurity reached the boardroom. What started as curiosity: exploring systems, understanding weaknesses, pushing boundaries. It evolved into a lifelong mission: find the flaws before someone else does.

Over the decades, David has uncovered critical vulnerabilities, pioneered IoT hacking research, exposed large-scale scam operations, written security tools, and helped organizations understand how real attackers operate. He has advised multiple Fortune 500 companies, guiding executives and boards through the complex threat landscape. If there's a way in, he understands it. If it can be abused, he knows how, and how to stop it.

He has held senior leadership roles at multiple international security companies, founded Unbreached and the Threat Prevention Center, and today serves as Chief Strategy Officer at Syndis, driving strategy across offensive security, advanced SOC capabilities, and executive-level advisory.

An internationally award winning and recognized keynote speaker and author, David bridges hacker culture with executive clarity. He created and hosted his own TV show, HACKAD_, bringing ethical hacking to a broader audience, and served as trusted technical advisor to the Millennium series, ensuring even fictional hacks reflected reality.

Beyond business, he works closely with the World Childhood Foundation and is the global ambassador for HackShield, working to protect children online and inspire the next generation of ethical hackers.

From underground hacker to global security strategist. Curiosity with conscience, expertise with purpose, and offense in service of defense.

What I Stand For

These aren't slogans. They're the principles that made me who I am: the reasons I've spent more than 30 years doing this, and the thread that runs through every hack, every talk, and every company I've built.

Curiosity Is Not a Crime
01

Curiosity Is Not a Crime

Everything I am started with one question I could never stop asking: "What happens if I try this?" That curiosity is what turned a kid poking at systems into the hacker I became. It exposes weakness in code, in systems, and in the assumptions we all live by, and I've followed it for more than 30 years, from the underground scene to the boardrooms of Fortune 500 companies. I've never believed the curious mind is the danger. The unexamined system is. Curiosity didn't just build my career; it's still how I see the world.

Curiosity Ethics Hacking
Security Is Not a Luxury
02

Security Is Not a Luxury

We don't call seatbelts a luxury, yet I still walk into organizations that treat security as an upgrade they'll get to later. Changing that has become my life's work: advising executives and boards around the world, and building Unbreached and the Threat Prevention Center so real protection isn't reserved for those who can afford it. When banks, hospitals, elections, and children's lives run on digital systems, security stops being a premium feature and becomes infrastructure. If we shipped physical products the way we ship software, "secure it later," people wouldn't just lose data. They would lose their lives. That is why I refuse to treat this as optional.

Security Infrastructure Risk
Safety Is a Mindset, Not a Product
03

Safety Is a Mindset, Not a Product

You can't buy awareness, and you can't outsource responsibility, no matter how many tools you own. I learned early that attackers don't break products, they exploit assumptions, so I've spent years teaching people to think differently: on stage, on my TV show HACKAD_, and inside the organizations I advise. The illusion of safety is more dangerous than the risk itself. A control you don't understand, test, or challenge isn't protection, it is decoration. Real safety begins the moment we stop believing we are already safe, and that shift in mindset is what I try to leave behind everywhere I go.

Mindset Culture Awareness
We Can All Be Hackers
04

We Can All Be Hackers

A hacker was never the criminal in a hoodie. A hacker is someone who understands a system well enough to question it, and I believe almost anyone can learn to think that way. It's why I work with the World Childhood Foundation and HackShield to turn kids into ethical hackers, and why I've spent a career proving that hacking can make the world safer instead of scarier. You don't need to write exploits. You need the courage to question defaults and ask uncomfortable questions in rooms that prefer silence. Hacking isn't about breaking things. It is about refusing to accept that broken is "good enough," and using that refusal to make things better for everyone.

Mindset Education Community

For the people behind the handles

Too many great hackers have left this world, while a brilliant new generation is growing up inside a very different hacker culture. Before LinkedIn profiles, job titles, and cybersecurity became an industry, many of us knew each other only by a handle. Mine were pewp and speed_phreak.

We didn't know what someone looked like, where they came from, what religion they followed, or what colour their skin was. But we knew what they had built, broken, discovered, or shared.

We shared common rules, a philosophy, a way of thinking, and above all the need to question the bits and the bytes.

The early hacker community had no real borders. It was global, and it still amazes me that even 30 to 40 years later, some of those hackers are among my closest friends.

Of course we argued, we competed, we challenged each other, and sometimes things got chaotic. But we also taught each other, shared knowledge, and built friendships that crossed countries, cultures, and backgrounds. My career would never have been what it is without hackers in my life.

We were hackers. We will always be hacking.

Not because hacking is about destroying things, but because hacking is about refusing to accept that something cannot be understood, questioned, improved, or changed.

That mindset helped build the security industry we have today. But as cybersecurity becomes ever more corporate, polished, and automated, we cannot forget where we came from. We have to preserve the stories, the culture, the mistakes, the friendships, and the people behind the handles.

Never stop being curious.
Never stop questioning systems.
Never forget where we came from.

We were hackers. We are hackers. We will always be hacking.

David Jacoby pewp/speed_phreak

On Screen, On Stage & On Paper

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Truly unhackable
systems found
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IoT devices hacked
in one afternoon
0 min
Average time to
find a way in
Times told
"it can't be hacked"

How Can I Help?

01

Technical Advisor

I help developers, architects, and creative teams bring tech and hacking to life, authentically. Whether crafting realistic cyber heists or ensuring technical accuracy in media, I make sure the details are right.

Visit Syndis →
02

Public Speaker

With a passion for human behavior and technology, I've spoken everywhere from boardrooms to global stages. My talks are inspiring, provocative, and entertaining, and they've changed how audiences think about security.

Book a talk →
03

Ethical Hacker

With over 30 years of experience, I specialize in breaking into things: networks, buildings, and human behavior, to expose real risk before the bad guys do. No system is impenetrable; the question is who finds it first.

Visit Syndis →
04

Strategic Advisor

I help companies and leaders understand why cybersecurity matters, turning security from a cost center into a competitive advantage. Strategic clarity, board-level communication, and actionable roadmaps.

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Say
Hello.

Have a project in mind? Need a speaker, advisor, or someone who'll find every hole in your security posture?

Just don't ask for the WiFi password.