Slander of title
In law, slander of title is normally a claim involving real estate in which one entity falsely claims to own another entity's property. Alternatively, it is casting aspersion on someone else's property, business or goods, e.g. claiming a house is infested with termites (when it is not), or falsely claiming you own someone else's copyright (what allegedly occurred in the SCO v. Novell case). Slander of title is a form of jactitation.