Tomu, a tiny ARM microprocessor which fits in your USB port
Hold on - doesn't having this live permanently in the USB port reduce the security possible with a 2FA device? If the user has to get the key from their pocket and plug it in, it will at least prevent an attacker from accessing the user's account in a remote-desktop scenario. Certainly the requirement to press the button will mitigate this risk to a degree, but might there be exploits that can trigger this button-press event using a carefully crafted USB signal?I understand the security vs usability thing, just beware of the risks of something like this (perhaps bluetooth-type keys like this are more usable as you don't need to bother plugging them in, assuming bluetooth decides to play nicely)