Like the rest of the commenters I'm puzzled by this choice to implement support for only one security key. I don't know of a single other place which imposes this kind of restriction. It is really quite inconvenient because I have multiple security keys, not to mention the fact the phones contain similar security elements. The first security key took 10 years to implement since they became supported by Google. Would it be reasonable to assume that it will take 10 more years to get the second one?
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