The setup is simple: when logging into gmail or other Google apps product, a Google Prompt notification on your phone will ask you to approve or deny the login request, along with information about the profile, location and device you're trying to log in from. Making things even easier: the new feature is actually baked into Android using Google Play services, users only need to update to the latest version to get it. On iOS, users will need to have the Google Search app installed.

Users can enable the new feature on Google's My Account page and the older methods are still available, if that's your preference.