user1577: I got myself a nice security key (Yubico Fido) today, which utilises the U2F protocol. But to my surprise not a single Bitcoin exchange seems to support this yet, only Google itself. 
So which Bitcoin exchanges (plan to) support U2F?

user6256: As you have correctly noticed none of the Bitcoin exchanges have implemented the FIDO standards there is not a large demand for this feature from what I gather.  If the standard were to gain mass adoption and many users began requesting it I'm sure it would become a greater priority for exchanges to implement.  
As a side note the Ledger hardware wallet does support the U2F standard and would be a great way to improve the security of your wallet (as long as you don't connect the two to each other (i.e. same keychain)).

1577: <p>I got myself a nice security key (Yubico Fido) today, which utilises the U2F protocol. But to my surprise not a single Bitcoin exchange seems to support this yet, only Google itself. </p>

<p>So which Bitcoin exchanges (plan to) support U2F?</p>
 6256: <p>As you have correctly noticed none of the Bitcoin exchanges have implemented the FIDO standards there is not a large demand for this feature from what I gather.  If the standard were to gain mass adoption and many users began requesting it I'm sure it would become a greater priority for exchanges to implement.  </p>

<p>As a side note the Ledger hardware wallet does support the U2F standard and would be a great way to improve the security of your wallet (as long as you don't connect the two to each other (i.e. same keychain)).</p>
