If my plugin Passwordly, only sends the keystrokes inside password boxes, is or isn't that a key logger? It's only capturing a subset of your input, like Grammarly, so not a keylogger?
If the argument is, it's not a keylogger because it's not logging sensitive information, well I type plenty of sensitive information into non-password textboxes.
I’d say passwordly also isn’t a key logger. By your definition every text editor would be a key logger. That may be the strict definition of a key logger but the commonly accepted meaning is different. A keylogger logs all keys regardless of the app being used or general use case. Often they are malicious as well but that doesn’t have to be the case.
If the argument is, it's not a keylogger because it's not logging sensitive information, well I type plenty of sensitive information into non-password textboxes.