It's been a couple of years since the Autofill API was added to Android and you've been able to use Google or other password managers to fill in your credentials and log in to apps. However, while most third-party password apps require you to verify your identity before releasing your details to another app, Google's autofill just surrendered those details willy-nilly as long as your phone was unlocked. That's not so secure. A recent change to Play Services fixes that by letting you require an on-the-spot authentication before Google autofills the data fields.

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