Getting persistent access to Flock's internal network is a high-priority item for every US adversary, who doesn't want free intel collection on the movements of persons of interest? Knowing who the FBI and local cops are monitoring in is the counter-counter-intelligence cherry on top of a self-inflicted dragnet surveillance cake.
Any entity with access to flock servers can virtually stake-out anyone/everyone driving past Flock camera to monitor their movements. In a hot war, this would provide actionable data to support assassination via road-side bomb/drone strikes.
.. with friends like these, who needs enemies