Re:Bitwarden PINs can be brute-forced
by chrismorgan on Sunday March 19, 2023 @09:44PM
(#35226221)
> Of course the PIN can be brute forced.
There’s no “of course” about it. Every place I can think of having used a PIN in the last decade has not been susceptible to brute-force attacks, due to the PIN being stored off-site (e.g. payment card) or in a TPM (e.g. Windows Hello), and a few incorrect attempts triggering blocking of the payment card or PIN or whatever.
If you think carefully about the description of this specific feature, and where and how it’s running, then yes, you’ll probably realise that the PIN will be brute-forceable. But people are probably used to the idea that PINs actually aren’t susceptible to this kind of attack.
There’s no “of course” about it. Every place I can think of having used a PIN in the last decade has not been susceptible to brute-force attacks, due to the PIN being stored off-site (e.g. payment card) or in a TPM (e.g. Windows Hello), and a few incorrect attempts triggering blocking of the payment card or PIN or whatever.
If you think carefully about the description of this specific feature, and where and how it’s running, then yes, you’ll probably realise that the PIN will be brute-forceable. But people are probably used to the idea that PINs actually aren’t susceptible to this kind of attack.