Over at the Yubikey website they mention that the Nano or 5C Nano series is meant to be always inserted into a computer. I've seen some other sites mention the Nano is good for servers. But why would it be a good idea to have a U2F device always inserted into a computer?


What they actually say is that the device is designed so that it can be permanently inserted - its form factor is such that it won't get in the way or break.

Physical security should still be a concern, but the use case for many people will be to just keep the key in their laptop or tablet.

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  • So basically it's trading a bit of security for convenience? I feel that if I had a Nano that was meant to stay in my computer and I left it unattended one might be able to do some damage. – RansuDoragon Jan 26 '19 at 12:55

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