The reason nation states are so interested in quantum computers is to crack public-key encryption.
The factoring of large primes is one thing that quantum computers could do once the bugs are worked out.
Some public-key data can be decrypted now, but definitely NOT in real-time. The various intelligence agencies want to decrypt all web traffic in real-time.
Even with working quantum devices the scales will always tilt toward those who wish to keep secrets...quantum computing is not a magic wand that can decrypt all data.
Some forms of symmetric encryption are mathematically provable to be safe from quantum computer decryption.
Interdasting. Linky, please?
Well, that and five bucks will give you a cup of coffee at Starbucks.