Bio-key devices can grant a PC a strong level of security and can increase the security of devices DRAMATICALLY but for this to work you are talking governmental and military networks, gateways and servers. Sure you got yourself a nice database with all the employees fingerprint, maybe a retina scan and lets just add for the sake of argument voice key. Now some dude is going to his work, first he has to pass the fingerprint and retina scan, which he activates with his voice. Then finally when he reaches his desk he can start the computer using his credentials and password which go together with a special USB key. Now this scenario shows a pretty strong level of security right?
Yet ask yourself the question would you really need that at home? Being in the industry myself for more then a decade did learn me one thing.
Even companies with the highest security clearance are not much safer then a responsible computer user, the fact however is that with social media and mass surveillance in mind and the new pending laws in the US it becomes pretty clear that BIO based credentials do not really contribute to YOUR security, but with Windows 10 + BIO keys you got yourself one EPIC fingerprint, user habits/profile, user interests + daily actions and you got direct access to all media including connected devices and the cherry on the pie is? EVERYONE will be using it which means that a government has one kick-ass source of info about anyone at anytime + at least 1 years worth of history. And the really nice thing is? They can say it was not us who did it but Microsoft. Funny is that right? Yet for example US law states explicitly that companies MUST have data retention and if requested in 9 out of 10 cases the data will either be shared trough direct and public channels, or trough the background or as the new hype of the moment being fetched by a automated program that has 24/7 access.
These practices are not a conspiracy theory and neither are they just a rare case. Those who use windows 10 just do yourself a favor read the EULA, Privacy policy but more important: Microsoft data retention policy. And then ask yourself the question are BIO credential devices really going to make your "home" computer + network safer? Does Microsoft really do me a favor by selling me this device for little less then 40 bucks?
Other then the above OBVIOUS privacy issues and i only named a few, the device itself can be really helpful since more and more companies and governments are going the biometric way for civilians to be able to login to a government site, tax site and such. So from that perspective it would make things more easy. Anyway at a few clients we use BIO based credentials and its easy, no passwords or anything needed just make sure you bring your eyes and hands.... it would be awkward if you manage to lose those lol.... Well look at the bright side maybe roboform will make a pass remember option for you... click on the link and a spare set of eyes come out LOLOLOLOLOL