You don't have to pick one or the other. According to the FAQ [0] (linked from the blog post): "In general, you’ll still be able to use a verification code the

You don't have to pick one or the other. According to the FAQ [0] (linked from the blog post): "In general, you’ll still be able to use a verification code the way you normally do on any device that doesn’t support Security Key." [0] https://support.google.com/accounts/answer/6103523 https://support.google.com/accounts/answer/6103523