The laptop broke the "post-quantum" cryptography scheme that was meant to protect information against quantum computers.
Image Source: (https://www.quantamagazine.org/‘Post-Quantum’ Cryptography Scheme Is Cracked on a Laptop) The fact is that quantum computers are a new thing. Those new and powerful systems are making the regular, binary cryptography old-fashion. Traditional RSA cryptography is very easy to break by using quantum computers. So there it needed a new algorithm that can protect networks against quantum computers. This is why NIST (National Institute of Standards and Technology) published the race, to create next-generation cryptography. The advances in quantum computing are huge. And that means those systems are turning more common. So maybe quite soon the first quantum servers are in use in private corporations. And sooner than we think, the first quantum-PC:s are sold in supermarkets. That means we must create new algorithms and methods for protecting our networks against quantum hackers. There is a problem that nobody knows what will be the next step in quantum technolog...