Passwordless Signon with single device and multiple accounts
The current implementation of Azure AD passwordless signon only permits one account per device, per tenant. So I can have my "regular" Office 365 account protected and passwordless using the MS Authenticator app, but I can't also setup my Office 365 Admin account (or vice versa). For the typical user with only one account this is fine, but as an admin I would prefer the security benefits of going passwordless on my admin account as well.
This is something we are working to resolve.