I have a Buffalo wireless router, to it I have wired my computer and also a photosmart printer. I am only wireless so my wife's laptop can use the internet and also access the printer. All is well, but when I want to print from my computer to the printer how secure is my printing? I would like to make a spreadsheet in excel of private numbers and info and print it for a hardcopy, But I am wary of doing this. This information is now on a USB flash drive I made when I disconnected my computer from the router. Yes, I actually have a switch that disconnects my computer from the router when I don't need the printer or the internet.
But again when it is connected to the router and information is sent to the printer how exposed is it? Am I wrong to worry about this?