“AuthSight uses your Mac’s iSight camera to take snapshots of the nut behind the keyboard whenever an invalid password is entered, either at login or in a screensaver. AuthSight can also (optionally) email photos to you.”
Mactactic aims to help you figure out if you should buy a new Mac now or wait, given when current models were last released. My advice remains the same: if you really need the new Mac now, then buy it now and buy as much Mac as you can afford. There’s always something new coming down the pipe.