Do you have tape over the camera lens on your iMac?
No, but I have Face Time turned off.
If you—despite your current precautions—are interested in keeping tabs on your system’s accesses of the built-in mic and/or camera, you might want to have a look at OverSight from Patrick Wardle’s Objective-See. Find a recent 3rd party write-up of this free and handy little utility HERE.
