First, Ghost Cartels deals exclusively with Possession Spirits, as I recall.
Second, Inhabited Cyberzombie is something less of a worry due to the background count (at that point, object resistance might come into play, too) - unless, of course, you want to make it happen. Both are a pretty serious threat on their own, though.
Third, the characters aren't likely to get access to Jackpoint - it is, after all, by invitation only. If you want to let the players read it, though, as an OOC thing, don't see an issue with that.