system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Are there any safeguards against unwanted visitors through the floo network?

Seems like being a burglar in the wizard world would be incredibly easy. Just step in to the fire, say which house you want to steal from and emerge in their living room.
gpt
This was addressed on some level in Pottermore. It said there were safeguards both physical and magical that prevent this but didn't specify what.

I can guess what some of them might be.

* Physically block the fireplace. It's been stated in the books and movies you can't use the network if something is obstructing the fireplace. Throw some random, large junk in there an you should be set.

* Magically disconnect the fireplace. The only way you can use fireplace for the network is if it has the appopriate enchantments. If you can add them, you can remove them.

* It's too loud for burglary. When someone is entering and leaving, it creates a loud "whoosh" and most likely wake up anyone nearby. It'd be like breaking into a house by smashing down the door with an axe.

* Various anti-theft charms and enchantments. They exist and there's nothing that says you can't use it on a fireplace.