What's the impact of security signature?

The impact is that others can see your courier information.

1, signing on behalf of the courier is to put the courier in the nearest supermarket or community doorman and other areas, not to sign for it yourself, so it is signing on behalf of the courier.

2. As long as you are notified by SMS or telephone on behalf of the courier, it means that your courier has arrived at your side or the collection point not far away is about to reach your hand.