to commonly asked questions.

Alternative to Safari

Question......signed on our computer tonight and a pornographic photo (a jpeg) came up after we signed on with password. How can that happen? It was in small form on our desk top. Appreciate it was not an email or Internet site via safari but seems rather odd. 

It didn’t get there by itself. Someone manually drug it from a source like off a web page and onto the desktop. That is the only way it got there.
This image is a theme.plist hack