The quantum revolution: Q-Day

The quantum revolution: Q-Day

Author: Financial Times March 7, 2023 Duration: 26:04

In the cybersecurity world they call it Q-Day, the day when a quantum computer will be built that can break the encryption of the internet.


John Thornhill and Madhumita Murgia speak to cybersecurity expert and former professional hacker Mark Carney about password cracking, and why quantum computers would be so good at it.


Renowned mathematician Peter Shor recounts how he became the first person to discover that quantum computers could upturn the encryption that underpins much of the internet. Jack Hidary, boss of the quantum technology company Sandbox AQ, tells us how quantum computers already pose a threat today, even if it’s decades before one powerful enough to threaten encryption will be built. And cryptographer Dan Bernstein explains why protecting ourselves from the quantum threat might just be down to better maths.


Presented by Madhumita Murgia and John Thornhill, produced by Josh Gabert-Doyon and Edwin Lane. Executive producer is Manuela Saragosa. Sound design by Breen Turner and Samantha Giovinco. The FT’s head of audio is Cheryl Brumley.


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Read a transcript of this episode on FT.com


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From the Financial Times, FT Tech Tonic steps beyond the breathless headlines and gadget launches to explore how technology is fundamentally reshaping our lives, economies, and social structures. This isn't just a series about the latest app; it's a deep, considered examination of the forces driving the digital age and their often unintended consequences. Each episode grapples with the complex interplay between innovation and its real-world impact, drawing on the FT's global reporting expertise to provide clarity and context. You'll hear conversations that dissect the power dynamics in Silicon Valley, investigate the ethical dilemmas of artificial intelligence, and explore how entrepreneurship is being redefined across different cultures. The podcast digs into the substance behind the hype, asking whether emerging technologies truly deliver on their promise to improve society or if they introduce new perils we are only beginning to understand. By weaving together threads from technology, business, and culture, the discussions offer a nuanced perspective that challenges simplistic narratives. Tune in for thoughtful analysis that connects the dots between boardroom strategies, algorithmic biases, and the everyday experiences that define our increasingly connected world.
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