We outline security threats for blind mobile device users
and possible defenses against them. Like sighted people, we
assume blind people access private data such as email communications,
text messages, social networking, online banking,
contacts information, and travel directions. We also
assume blind people use their devices in public places like
buses, street corners, and cafes, where others are present
nearby. Unlike for sighted people, however, we believe the
following threats pose far greater risks for blind people because
of screen reader technology or the lack of security features
available in specialized access technologies.