How to use an authenticator app on two devices
The same six digits on a second phone or laptop: why it works, the three routes to get there, and the button that quietly kills every device you set up.
How it works
The encryption, the trade-offs, and what we chose to give up.
Can 2FA be bypassed? The five routes, ranked
Yes, but not by breaking the code. The five real bypass routes ranked by how often they reach an individual, and what to check on your own accounts tonight.
What zero-knowledge actually means, and what it costs you
Zero-knowledge is the reason we cannot read your codes. It is also the reason we cannot get them back for you. Here is the mechanism, and the trade it makes.
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