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I'm renting a bedroom in a house with shared wifi, and I'd like to secure myself against any network snooping. I know that using the wifi network basically opens me up to snooping of any unencrypted traffic by anybody who knows the PSK. I'd like to use ethernet only, but I have devices that are wifi-only (like my phone).
I want to install a powerline adapter and run it into a gateway router in my room, then use that to establish my own secured wifi connection. My question is, will this work to secure me against any network snooping? The router is placed in a public area, so I can tell if someone sets up a hub between the router and the cable modem. The router is a Linksys router, but I've yet to determine if DD-WRT is set up on it or not.