Apple's Mac App Store Sandboxing Requirement Gaining Renewed Scrutiny as Deadline Approaches: Last November, we reported on Apple's plan to require all Mac App Store apps to be sandboxed, a move that would increase security by preventing apps from overstepping their bounds should they be affected by malware but which could hamper the functionality of certain apps. The requirement had been scheduled to go into effect in November but was pushed back to a March 1 implementation date as apparently sought to give developers more time to digest and prepare for the change.