I haven't much looked at quantum algos lately, since I flat haven't done those [meta]maths, except on occasion to chuckle at those who've accidentally done my maths. Sabine has lately alerted us that perhaps we should start paying attention.
Again, even the old maths are having trouble in the security sphere. AI has been uncovering Vulnerabilities. Anthropic's Claude Mythos has been making headlines, to which I suggest a cool head.
Presently we've been patting quantum computer engineers on their heads as they build four- or eighteen- or even eighty-qubit monster machines being supercooled with helium. The assumption had been that the Cold Equations, cruel to some, rested upon qubits not reaching the necessary bulk until the 2030s even '40s. As with interplanetary probes, advancement can happen in midjourney... but so can politics.
To Campbell's own 1954 Cold Equations, Quentyn Quinn long ago pantsed the premise (which author/critic Ralph Hayes da-Deuce has since taken offline). It may be we should pants the early-2000s premise of Quantum Forever Tomorrow.
We might not need myriads of qubits to mess up all encryption. We might just need the low hundreds. That-much a vicious government can certainly do. China has a vicious government.
I suggest however we don't do what Altman does, to treat all this as a means to send pensioners into the penury whither they're sending young STEM workers. I suggest research into quantum programming as does not involve breaking codes alone.