The reason is to protect the innocent, of course, they're mostly clueless about security! But I don't know the level of practical benefits for this measure, superficially seems to be rather low, but then (assuming silly usability issues like "appears frozen" are fixed) what's the downside?
The reason is to protect the innocent, of course, they're mostly clueless about security! But I don't know the level of practical benefits for this measure, superficially seems to be rather low, but then (assuming silly usability issues like "appears frozen" are fixed) what's the downside?