While the use of third-party tools is prohibited in Final Fantasy 14, the likes of Advanced Combat Tracker is regularly used by the game's raiding community and cross-referenced using websites like FFlogs. Yoshida's legal threat, however, is a significant step up in rhetoric.

Final Fantasy XIV fans began freaking out earlier this month after the discovery of a mod tool that could be abused to track down players and stalk them in-game, no matter where they were in the popular MMORPG.

Square Enix is aware of the PlayerScope plugin for Final Fantasy 14, and is considering legal action after players raised concerns.