Computer surveillance in the workplace is the use of computers to monitor activity in a workplace. Computer monitoring is a method of collecting performance data which employers obtain through digitalised employee monitoring. Computer surveillance may nowadays be used alongside traditional security applications, such as closed-circuit television. Computer usage monitoring Depending upon the technology and methods used, monitoring applications may track all activity or may target specific activities of employees on a company-owned computer or terminal. They may monitor various devices installed on the computer (e.g., web cameras and microphones). This includes not only recordings from these devices but also remote broadcasting of live feed from webcams and microphones. Tools used for monitoring employee computer usage incorporate: Screen monitoring records video or static images detailing the contents, or screen capture, of the entire video display or the content of the screen activity within a particular program or computer application. Monitoring tools may collect real time video, accelerated or time-lapse video or screen shots, or may take video or still image captures at regular intervals (e.g., once every 4 minutes). They may collect images constantly or only collect information while the user is interacting with the equipment (e.g., capturing screens when the mouse or keyboard is active). Data monitoring tracks the content of and changes to files stored on the local hard drive or in the user's "private" network share. Keystroke monitoring (e.g., number of keystrokes per minute) may track the performance of keyboard-intensive work such as word processing or data entry. Keystroke logging captures all keyboard input to enable the employer to monitor anything typed into the monitored machine. Idle time monitoring keeps track of time when the employee is away from the computer or the computer is not being actively used. Printer monitoring records documents files that are printed from the computer. Removable drives monitoring tracks external devices that are connected to the computer. Video/audio monitoring makes recordings and snapshots from connected devices webcam and microphone and broadcasts video/sound live. This is also known as employee monitoring in the industry. Employee monitoring is used for multiple reasons, including compliance and Insider threat management. Employee monitoring software can monitor application software, including email, instant message, filesystem and print jobs. Internet usage Internet surveillance is the monitoring of Internet data traffic, web access, and other online activity. This may include monitoring any Internet traffic including encrypted web browser traffic via Transport Layer