Google is dramatically shortening its deadline readiness for the arrival of Q Day, the point at which existing quantum computers can break public-key cryptography algorithms that secure decades’ worth of secrets belonging to militaries, banks, governments, and nearly every individual on earth.

https://arstechnica.com/security/2026/03/google-bumps-up-q-day-estimate-to-2029-far-sooner-than-previously-thought/

Google bumps up Q Day deadline to 2029, far sooner than previously thought

Company warns entire industry to move off RSA and EC more quickly.

Ars Technica
@dangoodin What's currently the largest number that has actually been factored using a quantum algorithm? So far I know only of absolutely trivial examples. I'm way out of my depth with what Google has produced there but I'd be skeptical of estimates about 2048 bit numbers when not even an 8 bit number has been shown to be feasible.
@menos @dangoodin Is this perhaps Google trying to get ahead of the next hype cycle, given the (hopefully) impending AI collapse?
@pier
Would be a good time for that given that the US/Israel war has just moved the popping of the bubble a good deal closer, too. @dangoodin