[traceroute66]

> You don’t need to be some big corpo to be considered ‘serious’.

That's not what I meant and I suspect you know that. :)

I meant everything from the Yubico hardware (more compact and less bulky than anything else out there) to the Yubico software (extensive featureset with more controllability than most other products out there).

Also as I said already, Yubico is one of the few (only ?) one that does not permit firmware flashing. Most competitor keys have firmware flashing capability, which to me is a big no-no as its an attack surface just waiting for an exploit.

That's what I meant by 'serious'.