@limbot, I would add your mentioned reasons (which is close to the Geoblock):
- Give yourself access to a secure network, which contains servers/services not accessible directly from the internet. Like having access to the NAS inside your home-network.
On good hotel networks “Client isolation” is enabled preventing different devices from seeing each other. That would also prevent you from seeing your own other devices!
@GLiNet2022, as for finding your Beryl is inside a hotel wifi: That is not an issue. The beryl is made to be connected directly to the internet (technically the whole world can find it then!) and it therefore configured to handle that (has a firewall and such!)
I personally mostly use a VPN to secure that wifi-connection and give myself access to things not directly accessible from the internet.
Wifi goes through the air, so everybody can listen in. In case it is unsecured, it is simply visible for everybody to see your traffic. In case it is secured with a password, it will often still be visible for others who know the wifi-password (as long as they can capture the 4-way handshake between you and the AP). So the security of (passworded) wifi networks is as good as its password is kept secret! (Think of it as the front door and giving out the key to every guest…)
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