The feeling of security and the reality of security don't always match, says computer-security expert Bruce Schneier. In his talk, he explains why we spend billions addressing news story risks, like the "security theater" now playing at your local airport, while neglecting more probable risks -- and how we can break this pattern.

Playwright Eve Ensler explores our modern craving for security -- and why it makes us less secure. Listen for inspiring, heartbreaking stories of women making change.

Imagine global security driven by collaboration -- among agencies, government, the private sector and the public. That's not just the distant hope of open-source fans, it's the vision of James Stavridis, a US Navy Admiral. Stavridis shares vivid moments from recent military history to explain why security of the future should be built with bridg...

Mikko Hypponen lays it out: "The talks I chose for my playlist are about technology, security or privacy. Because geeks. Then I added the talk from Dan Barber. Because fish."

Bruce Schneier thinks hard about security -- as a computer security guru, and as a philosopher of the larger notion of making a safer world.

Lorrie Faith Cranor studied thousands of real passwords to figure out the surprising, very common mistakes that users -- and secured sites -- make to compromise security. And how, you may ask, did she study thousands of real passwords without compromising the security of any users? That's a story in itself. It's secret data worth knowing, especi...

To cut through the noise and disconnection of an increasingly digital world, poet William Sieghart proposes a centuries-old tool for connection - poetry. In this talk, he describes how the language of poetry can offer comfort in a time of isolation.

Antarctica is a vast and dynamic place, but radar technologies -- from World War II-era film to state-of-the-art miniaturized sensors -- are enabling scientists to observe and understand changes beneath the continent's ice in unprecedented detail. Join radio glaciologist Dustin Schroeder on a flight high above Antarctica and see how ice-penetrat...

What if you could track donations of medicines that help treat over one billion of the world's poorest people against neglected tropical diseases, the same way you track the package you order on Amazon? Working with supply chain experts from around the world, biochemist Christian Schröter developed a method for tracking medical donations from th...

You are more likely to die violently if you live in a middle-income democracy with high levels of inequality and political polarization than if you live in a country at war, says democracy advisor Rachel Kleinfeld. This historical shift in the nature of violence presents an opportunity for everyday voters to act as a great force for change in th...

In 2013 Edward Snowden leaked thousands of classified American National Security Agency documents, sparking a global conversation about citizens' rights to privacy on the Internet.

Whether he’s taking on insecure hotspots, inept passwords, or lax OS designers, James Lyne exposes technology’s vulnerabilities while elevating the security awareness of everyday users.

The little things that you (yes, you) can do now (yes, now) to make a difference.

We waste a staggering one trillion dollars worth of food each year, significantly contributing to greenhouse gas emissions and the climate crisis. Food waste expert Dana Gunders shares innovative solutions to reduce waste — from solar-powered cold rooms to apps that sell discounted restaurant leftovers — and shares tips on how you can keep good ...

Del Harvey works to define policy and to ensure user safety and security in the challenging realm of modern social media.

Chris Domas is an embedded systems engineer and cybersecurity researcher.

Todd Humphreys studies GPS, its future, and how we can address some of its biggest security problems.

What does a warming planet mean for the foods you love? Hosting a dinner party that features a menu of foods that could disappear within our lifetimes, culinary entrepreneur Sam Kass invites us to chew on the reality of climate change by exploring the things — like chocolate and coffee — it puts at risk.

Cybercrime netted a whopping $450 billion in profits last year, with 2 billion records lost or stolen worldwide. Security expert Caleb Barlow calls out the insufficiency of our current strategies to protect our data. His solution? We need to respond to cybercrime with the same collective effort as we apply to a health care crisis, sharing timely...

Is cybercrime getting easier? Cybersecurity expert Ryan Pullen dives into his work investigating massive digital breaches and testing security blindspots — which led to him gaining access to the software controls of a well-known building in London. Learn more about how cybercriminals exploit human vulnerabilities and hear the latest on how to re...

From work and happiness, to love and success (and everything else in between), these talks offer insights on some of life's biggest secrets.

Could the key to a sustainable food system already be growing in the world’s farms? Plant scientist Giles E.D. Oldroyd explores how a special quirk of soybean plants allows them to naturally partner with networks of fungi and bacteria to access essential nutrients in the air and soil — eliminating the need for synthetic fertilizers. He shows how...

David Birch is a digital money and ID consultant paving the way for a 21st-century identity.

Avi Rubin is a professor of computer science and director of the Health and Medical Security Lab at Johns Hopkins University. His research is focused on the security of electronic records -- including medical and voting records.

Women are routinely underestimated, overlooked, interrupted, talked over or mistaken for someone more junior at the workplace. Author Mary Ann Sieghart calls this the "authority gap" — all the ways women are (still) taken less seriously than men, despite proven competence and expertise. She explains how we can close this pernicious gap and why e...

Dr. Erin Marie Saltman manages Facebook's counterterrorism and counter-extremism policy work for Europe, the Middle East and Africa.

Embrace our wide-open shareable future -- where everything's hackable and the power of the crowd propels innovation.

Christopher Soghoian researches and exposes the high-tech surveillance tools that governments use to spy on their own citizens, and he is a champion of digital privacy rights.

Andy Yen is building an encrypted email program that lets everyone benefit from private communication.

What's tasty, abundant and high in protein? Bugs! Although less common outside the tropics, entomophagy, the practice of eating bugs, was once extremely widespread throughout cultures. You may feel icky about munching on insects, but they feed about 2 billion people each day (Mmm, fried tarantulas). They also hold promise for food security and t...