I was about to say the same thing. These things are quite sturdy and if you loose your key (as people do) you retire the old one and make a new. These things ar

I was about to say the same thing. These things are quite sturdy and if you loose your key (as people do) you retire the old one and make a new. These things are neither expensive nor irreplaceable. Of course if you loose your key it's going to hurt, as it should. I've had a Yubi Key for almost 5 years now. Zero issues.