TeXShop is a TeX previewer for Mac OS X, written in Cocoa. Since pdf is a native file format on OS X, TeXShop uses "pdftex" and "pdflatex" rather than "tex" and "latex" to typeset; these programs in the standard teTeX distribution of TeX produce pdf output instead of dvi output.
These details are provided for information only. No information here is legal advice and should not be used as such.
There are no reported vulnerabilities
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.