Re: You mean PUBLICLY KNOWN quantum computers
Considering IBM used the word "magic" as password to their Pentium 100 MHz PS/2 Aptiva's zipped image back in the 90's, don't expect too much of them.
It took 2 hours on the Pentium 100 MHz itself to crack that. If they trusted on a 3rd party low-level encryption method, and used a dictionary word for password BACK THEN, what makes you think they grew any better?