Quantum Physics

Quantum computers could break the internet. Here’s how to save it

Scientists are figuring out how to send information securely in a future era of quantum hackers

Illustration of a red and yellow key with bubbles around the handle and the bit. A greenish bubble also encircles the entire key and blue gear shapes appear in the background.

Public-key cryptography keeps our private information safe from any snoops, but it’s vulnerable to future quantum computers.

HARALD RITSCH/SCIENCE SOURCE

By Emily Conover

- More than 2 years ago

Keeping secrets is hard. Kids know it. Celebrities know it.