If you’re like me, then you probably don’t appreciate it when someone grabs your iPhone and tries to guess your passcode. Fortunately, a free jailbreak tweak called Hidden Cam by iOS developer Baw Apple can help you determine who’s doing this when you aren’t looking.
Hidden Cam works by snapping a selfie every time your passcode gets entered incorrectly. This method is incredibly efficient because it won’t use any system resources if your passcode or biometric authentication succeeds.