Apple's free case program ended last month, but some users who did take advantage of the free cases to protect their devices may soon become acquainted with another design flaw, one that could lead to serious cracking. Apparently, some slide-on cases may cause tiny cracks in the glass on the back of your iPhone if small pieces of debris are caught in between the phone and the case. And those tiny cracks can quickly turn into much larger cracks, even if you keep the case on.

Find out what Apple may be doing to deter any potential problems after the break.