With the release of an update of their app and their systems, even iOS users can easily use the physical security keys to access a Google account.
Google has announced native support for the W3C WebAuthn implementation for Google accounts on Apple devices with iOS 13.3 and later, which improves the iOS experience and allows you to use more types of security key with Google Accounts and the Google Enhanced Security Program.
With this update, iOS users will also be able to use Google’s Titan Security Keys via NFC, placing the key on the back of an iPhone or iPad to log in.
Lightning or USB security keys such as the YubiKey 5Ci model can be used with Google accounts if you have a Apple Lightning to USB camera adapter. USB-C security keys can be connected directly to iOS devices with a USB-C port, such as Apple’s iPad Pro models.
Google also recommends iOS users to install the Smart Lock app to use the Bluetooth security keys and the integrated security key of iPhone, as this allows iPhone to function as additional protection for a Google account.
The use of a physical security key offers greater protection than two-factor verification since it requires the physical key (or the PiPhone key with the Smart Lock app) to access Google accounts instead of just a digitally generated code.