There are several common ones for letter combinations like "oe" - perhaps this font simply registers longer ones for whole words?
Edit: if you're on a mac, download the .zip file and double-click on one of the .otf font files. It will open in Font Book: View->Show Font Info says it hs 451 glyphs, and View->Repertoire shows that there are indeed glyphs representing each of the censored words.
> This way it automatically highlights and points out the content prone to secret surveillance.
The font is designed to alert writer, not scanner systems. I think use of a font is a very clever idea: instead of supplying separate tool that is hard to integrate with other systems it reuses OS functionality. Utility value highly drops, but the concept is very cool.
Someone might get an idea for a much more sophisticated "font" system that would process the text behind the scenes. Imagine that WM provides html/markdown/pdf rendering capabilities and browser acts as a transport. In case of dirt simple WM (terminal) browsers could provide renderer plugins. The same browser core could be reused for pc/mobile/text, no need for complex sandboxing/multiprocess security and stuff.
This website does the worst job explaining what it's even here for. I have to spend ten minutes reading obfuscated to text to understand that the font shows different glyphs when I type a "dangerous" word? Why do this in a font? Why don't you build a spellcheck dictionary and misuse that technology instead of this one that's in front of me all day?
It would be nice if a few of the people upvoting this came into the comments section to explain what they liked about it. I personally find absolutely no value.
The list is based on a publicly available list that was released by Homeland of National security in 2013, so the focus is on US list, with that being said it shouldn't be taken to literate since by recent reports NSA and GCHQ have identified more than 40.000 triggers. Project "Seen" wants to stimulate a conversation on this topic opposed to being an actual tool.
Make sure to use strong SSL certs, otherwise how do I know its your website? There better be a little green lock in the upper left corner of my browser ;)