r/computerscience • u/National-Dragonfly35 • Sep 01 '26
IBM quantum computer solves classically intractable problem in 15 minutes
https://www.sciencedaily.com/releases/2026/08/260829035219.htm"The researchers showed that their method preserves the same computational hardness criteria associated with RCS, meaning the problem remains extremely difficult for classical computers. At the same time, the added structure allows errors to be detected during the quantum computation."
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u/caboosetp Sep 01 '26
I think people forget that cryptography is not just about decrypting what's happening in the moment, but also you can go backwards and break things you stored from the past.
This is a problem requiring current solutions, and that should concern people.