Currently she's accessing Overwatch's databases. Since they are the equivalent of S.H.I.E.L.D. in this world I'd assume that they have databases full of information.<br/>I would think that hacking into the security camera's would again be Technology check. Given the way that surveillance is written<em>SURVEILLANCE: You can set up surveillance of a particular area, watching from a stationary location</em>. It seems to be more the sitting in the car across the street watching, or on the roof top with binoculars rather then remotely accessing a security system.