US Patent 10009355 Bootstrapping user authentication on devices

Disclosed are various embodiments that facilitate bootstrapping authentication of a user at a first device using a second device. The second device is authenticated for access to a user account via a first security credential. A second security credential is received by the second device. The second security credential is then sent to the first device. Subsequently, the second security credential is received from the first device, and the first device is authenticated for access to the user account. The second device includes visual cues to indicate a network page is legitimate, while the first device excludes visual cues to indicate the network page is legitimate.