Ingress Players Use Unofficial Tools To Stalk One Another

In May, Nicci Kay and her wife moved 25 miles south to the port city of Tacoma, Washington where, in time, they planned to overtake the Resistance's hold on the area. Kay is an Ingress player, an agent in a great and invisible cyberwar over territory that spans the globe, involving two factions: the Resistance and the Enlightened, of which Kay is a member.