If identity is established based on one thing you know and one thing you have, the latter should not also be a thing you know because in the sharing economy, we share everything.
If you’ve been on Facebook any length of time, you’ve probably scrolled by one of those “let’s get to know each other” status updates. These seemingly innocuous exhortations to share information make my teeth itch.
It’s not because I’m not into sharing with friends, or divulging sometimes quite personal information. It’s because this data is increasingly part of the security equation that “protects” even more sensitive personal data.