I think you mean "obsolete" and not "redundant" but yes, the common asymmetric encryption methods used for things like HTTPS are trivially cracked with a powerf

I think you mean "obsolete" and not "redundant" but yes, the common asymmetric encryption methods used for things like HTTPS are trivially cracked with a powerful enough quantum computer. The good news is that people have been anticipating this for a while, and there's a lot of study in the field of post-quantum encryption. From what I understand, people have come up with techniques that work (meaning nobody's discovered a reason why they wouldn't work). The bad news is that this does nothing for the data that we're currently encrypting. There's nothing to stop someone from storing today's encrypted web traffic and decoding it in the future when working quantum computers are capable. Thanks to Edward Snowden and others, we know that the US government is already hoarding and sifting through data, so I have no doubt that there are plenty of agencies planning on doing this exact thing.