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Unauthorized access of webcams can present significant privacy issues (see "Privacy" section below).

In December 2011, Russia announced that 290,000 Webcams would be installed in 90,000 polling stations to monitor the Russian presidential election, 2012.

Webcams have been used for augmented reality experiences online.

This can be applied to games, providing additional control, improved interactivity and immersiveness.Free Track is a free webcam motion-tracking application for Microsoft Windows that can track a special head-mounted model in up to six degrees of freedom and output data to mouse, keyboard, joystick and Free Track-supported games.By removing the IR filter of the webcam, IR LEDs can be used, which has the advantage of being invisible to the naked eye, removing a distraction from the user.Track IR is a commercial version of this technology.They have also become a source of security and privacy issues, as some built-in webcams can be remotely activated by spyware.

The most popular use of webcams is the establishment of video links, permitting computers to act as videophones or videoconference stations.Video features, including faces, shapes, models and colors can be observed and tracked to produce a corresponding form of control.For example, the position of a single light source can be tracked and used to emulate a mouse pointer, a head-mounted light would enable hands-free computing and would greatly improve computer accessibility.A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.When "captured" by the computer, the video stream may be saved, viewed or sent on to other networks via systems such as the internet, and emailed as an attachment.Other popular uses include security surveillance, computer vision, video broadcasting, and for recording social videos.