Account lockout option
If somebody attempts to login to my account more than X number of times (user configurable), lock the account to protect it from an attack.
In order to use this option, the user would have to download the recovery key and store it safely (outside proton pass!)
4
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Ryūga Hideki commented
So you just want to open the gates for someone to keep you locked out for long periods of time, or perhaps forever, if they manage to find a way to use a bot to repeat these actions infinitely against a desired/predefined number of accounts of their choice.