Ok, so just got home, loaded plex and saw someone was watching Ice Age on a Chromecast as my user account! I have friends I share libraries with but have never given out my account information. I have noticed this a few times over the past couple months and even reset my password to something complex(lastpass). Any idea how I can stop this from happening?
go to Plex.tv
log into your account there.
Go to setting and change the password.
While there: Disconnect all connected devices
You will have to sign all your devices back into your account.