Hashtag threat model

My dentist just did in-person 2FA! "I just texted you a code, can you read that back to me?"

It was for security, the receptionist assured me.

I guess I might be trying to smuggle someone else's teeth in for a cleaning?

Fortunately my dentist does not have extremely detailed records of any of my biometrics that might be useful for identifying me.

Previously, previously, previously, previously, previously.

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