Using Webcam as Remote Security Cam
Sure, there are lots of applications that allow you to remotely view a feed from any camera connected to a Mac, including the built-in camera: EvoCam, RemoteSight, SecuritySpy, or if you're handy with command-line tools, iSightCapture.

Most of these products stream the feed from the camera to a web server, which you can then view on your iPhone or work computer.