this post was submitted on 12 Jul 2024
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I understand Signal's stance on this. For this vulnerability, the attacker needs physical access to computer. If the attacker has already gained physical access, the attacker can already access your messages, crypto wallets, password managers.
Many password managers also have this flaw. For example, Someone can change Keepass master password if the user is already logged in to the session, if they have physical access to the PC and lock you out of all your accounts.
This seems like easy fix is available. On Windows, Access Shadow copies, restore previous version from $DayBeforeLockout. Or on Linux, specific file systems have automatic volume level snapshotting available. Or on either...restore the keepass file from a backup before the change.
Yeah, I know about this. That's why backups are so important.