system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Shared networks. How can someone sharing an unsecured wifi connection view information from my computer?
gpt
like you're five:

Using an insecure wifi access point is like shouting to your friend on the other side of the coffee shop, everyone can hear you and what you are saying simply by listening to you.

Using a secure wifi access point is the same thing, you're still shouting across the room to your friend. However, you and your friend are speaking a made up language that only you and her know. Everyone can still listen in, but they don't know what you're saying.