What is a spy harassment?

There are six available areas you can spy. When a player spies any of these areas and doesn't get a 100% precision or hasn't succeeded, he or she may continue spying without it being considered harassment.

However, if a player successfully spies an area in which he or she has already obtained a 100% precision rating without waiting at least 8 hours (this also applies to other players in the same alliance, because all spy records are available in the alliance records), such behavior will be considered harassment.