Abstract: Various systems and methods are provided for using dummy characters to provide enhanced security of a user's login credentials. The functionality disclosed herein provides specific steps for the creation, evaluation, storage, and use of such dummy characters in conjunction with a user's login credentials. Dummy characters can be thought of as characters that are not part of a user's actual password, but which are mixed in and around the actual characters when the password is being entered, in order to protect a user's true password from prying eyes and nefarious actors. Dummy characters can be associated with a specific user and/or a specific device or devices associated with a specific user. The functionality provided herein prevents a nefarious actor from simply repeating an entire password string (including the dummy characters) on a device that is not associated with the user whose credentials the nefarious actor is attempting to misappropriate.

Abstract: In some examples, a computing device may determine, based on sensor data, that the computing device is in a public environment. In response, the computing device may display an entry wheel to enable a user to enter a password. The entry wheel may include multiple input symbols arranged equidistant around a circle. In some cases, one or more geometric patterns linking a portion of the input symbols may be displayed. After receiving an individual character of the password, the computing device may display the entry wheel rotated a number of positions in either a clockwise or counter-clockwise direction and display zero or more of the geometric patterns. After all the characters of the password have been received, the computing device may determine if the password matches a previously stored password. If the password matches, the computing device may transition from a low power state to an active state.