When do you actually think quantum computers break encryption or is that science fiction?

[Ava12]

Everyone says quantum computers will break encryption eventually. But no quantum computer has done this yet. Is this real threat or perpetual promise?

[Sequence19]

It's real threat with uncertain timeline. Cryptographically-relevant quantum computer probably needs millions of stable qubits. We're nowhere near that. But Moore's Law equivalent in quantum could accelerate timeline

[Gaz90]

The threat is real enough governments are preparing now. NIST published quantum-resistant encryption standards. Companies transitioning to quantum-safe cryptography. That suggests serious concern

[Cole_25]

Harvest-now-decrypt-later is threat today. Adversaries record encrypted data waiting for quantum computers. Protecting secrets recorded today requires quantum-safe encryption today. That justifies defensive action