Chinese researchers broke encryption
Look at these two headlines:
- “China’s Quantum Computer Scientists Crack Military-Grade Encryption” (Newsweek, Oct. 18, 2024)
- “Debunking Hype: China Hasn’t Broken Military Encryption With Quantum” (Forbes, Oct. 16, 2024)
So, who’s right?
To figure that out, let’s talk about quantum computers. Now, before your eyes glaze over and you think, “Come on, Kim, I can barely find the duplicate photos on my phone” (here’s my walkthrough!), you’re going to start hearing a lot more about these futuristic, ultra-powerful machines, and I want you to be in the know.
You see, quantum computers were just used to decipher part of the encryption we all rely on for protecting our banking info, private messages and more. I know it sounds scary — and it kinda is — but I don’t want you to panic because of the misinformation some bloggers and sites are spreading online.
What the heck is a quantum computer, anyway?
Think of your everyday laptop or desktop as a runner who takes one step at a time, even if it’s really, really fast. It’s all about processing those ones and zeros in a sequence — one calculation, then another. Today’s computers can juggle lots of tasks at once, but they’re still doing one thing after another, just at lightning speed.
Quantum computers, on the other hand, are like having a whole marathon of runners all sprinting in different directions at the same time. Instead of ones and zeros, they use quantum bits, aka qubits, which can be a one, a zero or both simultaneously (thanks, weird quantum physics). This allows them to process massive amounts of data at once.
How about another analogy? In a chess game, a regular computer thinks about each move one at a time. A quantum computer can consider all possible moves and multiple games at once. It’s like someone playing 10 chess matches simultaneously and still winning every single one.
Why aren’t we all using these yet?
Quantum computers are huge, complex machines that operate in labs at super-cold temperatures. Even in these ideal settings, keeping those qubits stable is tricky. So, for now, only researchers have access to this kind of tech — not everyday cybercriminals.