It doesn't sound all that unlike if you were to be doing IT work for your company on your bosses computer, accidentally click on the folder, and woops, you just

It doesn't sound all that unlike if you were to be doing IT work for your company on your bosses computer, accidentally click on the folder, and woops, you just discovered a lot of photos of a particular sub-class of people. Do you not say anything, and potentially leave yourself liable, or do you say something, and risk the fallout from that?