The ban on Pokemon Go has nothing to do with security, it's about controlling the society.
To make it more specific: place a rare Pokémon near the target to have a constant horde of zombies going there and trying to catch it. Or alternatively, place a bunch (3+) Pokéstops close to each other near the target and you get a place where regular players will hang around (there's a powerup called "Lure" that can be dropped on a Pokéstop, which causes increased chance of random encounters with Pokémons in the proximity for the next 30 minutes; if you have 3+ Pokéstops close to each other and each has a Lure on it, you can basically grind all the in-game valuables without moving from where you're sitting).
I'd say the first strategy is most viable, because Pokéstops are placed on the same spots Ingress portals are, so it would be immediately obvious if someone added a new stop/portal next to a classified target.