I suspect #mastercard are #overstating the #security of their #creditcards by stating that they are #secure against #quantum #attacks , given that there is no known #algorithm to #secure agaisnt these #attacks https://hackaday.com/2022/10/25/masterca.. I suspect a #time -based or #mutating #onetimepad could be the way forwards to #secure against such attacks. I did come up with an #algorithm many years ago... But never pushed it.