'OK Google' will no longer fully unlock your phone

Google has come up with a compromise to make its "OK Google" feature more secure. Rather than allow users to unlock their Android devices completely (a security risk), the Voice Match command will soon limit "OK Google" to open the Assistant interface on the lock screen. There, interactions will be limited to "personal results," things like Google Calendar, email, reminders and shopping lists. For Google's phone and tablet users, this is a both loss of functionality and a significant gain in terms of security. Previously, you could say something like, "OK Google, what's the weather today?" and your device would unlock your screen to open a weather app.