[olalonde]

Deceiving a kidnapper into thinking you complied with their order to unlock your phone would be a legitimate use.

[rbanffy]

My RSA app accepts a PIN before it generates a passcode. If I enter the wrong PIN, it’ll generate a wrong passcode.

Do, I guess the cops will continue to beat me until I produce a valid passcode.

[olalonde]

This feels like a rhetorical question but I'm not entirely sure. What do you mean?

[rbanffy]

It was just an observation of a clever feature of my security token, as well as one on how futile it is if whoever wants a real passcode really wants it.

[olalonde]

Oh ok, I misunderstood! Ledger wallet has a similar feature where you can assign a decoy wallet to a pin code.