APP: Press the Notify Security Tab in red in the middle. Click the Anonymous Tip Off tab and fill in the relevant details, including photos and a description. Press send, where this will go to management without anyone ever knowing who it came from.
WEB: Click on the top of the screen, in between home and Tasks, on Contact Security. This will give you the options to submit an Anonymous Tip-off, create a Community Alert or view the Communities Security Details.