So say there are three devices on a LAN, first (A) is a pc connected to their main and first router, second (B) is a pc connected via an access point [second router], third (C) is a smartphone connected to the same access point via Wi-Fi. Would any of those devices or people be able to see the browser history of the other devices? I know you can install programs and stuff to snoop and see every packet of data on a network, but that is extremely advanced stuff, lets stay at a lower level. So would the people on the network be able to easily see other's browser histories and/or online activity?