A proxy is a network service that is authorized to act for a system while not being part of that system. A proxy server or proxy gateway provides proxy services; it is a transparent intermediary that relays communications back and forth between an application (e.g., a browser) and a server that usually resides outside of a LAN and frequently on the Internet.

Anderson, M. (2017). What is load balancing? Digital Ocean.https://www.digitalocean.com/community/tutorials/what-is-load-balancing

Why are proxies necessary and are they secure?

What makes them more secure than not having a proxy?

(TYPE THE ANSWER OUT, NO PHOTOS PLEASE.)