It has to come from the provider. It expressly cannot come from any other entity/source. ONLY the company that makes the product/software in question can implement it in their product.
This is NOT an emergency. There are no quantum computers outside of research facilities yet. And they will likely be so expensive at the beginning that crooks won't pay that much in spite of a year or 2 of POSSIBLE (not guaranteed) windfall takes from scams or other cheats/security-defeats. Quantum computers can be purchased today, but their use is limited to research & development use because there are significant technical issues with quantum computing that MUST be solved (no options) before quantum computers can become widely accepted/used.
One of the significant problems is that the nature of quantum computers introduces errors in calculations. Learning how to either prevent those errors from happening or correcting them instantly on the fly after a mistake is made is absolutely critical before quantum computers can be put in general use. Best estimates are that it will be "decades" before quantum computers are in general use. And it will be 5 to 10 years at least before quantum computers will be widely useful--mostly because of the issue with errors.
One of the main factors keeping progress slower than anybody likes is the lack of engineers with the specialized knowledge to work on designing quantum computers. Only 0.5% of the world's population are engineers and only an extremely small subset of those engineers are qualified to work on quantum computers, probably no more than a 200 or 300 engineers in the world so far. Companies that have quantum computers for study, research, & development include Google (Quantum AI), IBM , Microsoft (Azure Quantum), Amazon Web Service (Bracket), IonQ, D-Wave, Quantinuum, Rigetti, Xanadu and some others. Cleveland Clinic is learning how to use an IBM quantum computer they own for cancer research. There are about 75-80 companies working on various aspects of quantum computing right now, some using shared access to quantum computers owned by some of these listed companies.
Why quantum computers scare the crap out of computer security people: The best encryption we have today requires stunning amounts of time for the best conventional computers to crack a 2048 digit encryption key... an estimated 300 TRILLION years! That's many times older than the universe (13.5-14 Billion years) to crack ONE encryption key. A quantum computer optimized for the job will crack a 2048 digit encryption key in hours or even as quickly as 10 minutes by some estimates. The scaling of speed is so incredible it is almost difficult to envision. An 8.5x11 inch sheet of paper with 1 inch margins holds about 2048 characters with single spaced lines of a 12-point font with the same spacing for every character (proportional fonts vary the space for each letter depending on the width of the letter).
