How to Disable the Camera on a Macbook

Click on the 'Spotlight' search icon in the top right of the OS X screen. The icon is a 'magnifying glass.' In the search box, type in 'Terminal.' Wait for the results to load and click on 'Terminal' from the list of results.
Type the following into the 'Terminal' prompt (note the space between 'mkdir' and the '/') and press 'Enter.''mkdir /System/Library/QuickTime/.iSightBackup'
Type the following command into the 'Terminal' prompt (note the space between 'mv' and the '/') and press 'Enter.''mv /System/Library/QuickTime/QuickTimeUSBVDCDIgitizer.component /System/Library/QuickTime/.iSightBackup/'
Click the small red 'X' icon in the top left corner of the Terminal to exit. The camera is now disabled.
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