The potential for abuse definitely exists. But I think the scope of the problem is a little smaller than stated. First, think about the amount of processing power it would take to sift through all of that data. Not very many entities have access to in-memory databases to feed this information into. Secondly, if at any point someone actually tried to exploit PokemonGo in the manner you suggest, that particular act would go public eventually. It would be a one-and-done tactic. PokemonGo only remains an attractive target as long as it is full of naive users, and as long as the vulnerabilities aren't public. Most people won't be continuously manipulated in the exact same manner, especially if the dangers are known. If we are having this much discussion about the dangers of PokemonGo before anything bad even happens, imagine the amount of scrutiny that would be applied should something actually occur. While I do not think PokemonGo is harmless, I do see the benefit in the game, from a certain perspective. Personally, I do not play...and I am not anymore fearful for the lives of those that do than I was before it was introduced.