Apple recently responded to a known security issue in iOS that has been dubbed “Masque Attack.” In its simplest form, the attack can be used by would-be hackers to try to trick an end user into installing dangerous malware on his or her iPhone. It takes advantage of the iOS Enterprise Developer platform, which allows enterprise departments to distribute apps to employees outside of the Apple iTunes App Store. That can be dangerous, since Apple typically advises you only install apps directly from the store.