
Doing so allows entry into the pertinent Google system. With security keys, users still start by logging into their Google account in the usual way, then (after setup) they are prompted to plug their security key into a USB port on their device. In the past, the second form of identification involved Google sending a special password to a phone, which had to be typed in. The security keys serve as a secondary form of security for devices running Google applications-it is a new form of 2-factor verification.

Brand notes that now that NFC is supported on virtually all Android and iPhone devices, the company has developed NFC versions of its security keys to suit both kinds of consumers.

That key was based on Bluetooth technology. As Christiaan Brand, Product Manager for Google Cloud, notes on the announcement blog, Google introduced the Titan Security Key back in 2018 as a way to help users avoid phishing attacks on Google accounts.
