https://www.theregister.com/2025/07/17/quantum_cryptanalysis_criticism/
https://www.cs.auckland.ac.nz/~pgut001/pubs/bollocks.pdf
… Peter Gutmann, a professor of computer science at the University of Auckland New Zealand, thinks PQC is bollocks – “nonsense” for our American readers – and said as much in a 2024 presentation [PDF], “Why Quantum Cryptanalysis is Bollocks.” Gutmann’s argument is simple: to this day, quantum computers – which he regards as “physics experiments” rather than pending products – haven’t managed to factor any number greater than 21 without cheating. …
TheRegister explains this person explains the bit about the D-Wave quantum computer factoring a 2048bit RSA was due to two prime factors that were too close together.
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