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Well, it is reddit, and it does tend to lean his way ideologically.

the use of history is often wrong or manipulated

But it's the fundamental premise behind courts relying on precedent to make decisions. History matters.

How can we ensure that multifactor authentication isn't used like a cookie to track people across multiple accounts? In other words, if I give a company my phone number for SMS authentication, or my phone's serial number and additional information by downloading an authentication app, how do I know it won't be used for marketing purposes?