Both the front and the back doors lock automatically, so make sure the door closes behind you when you enter or leave the house. They are equipped to unlock by swiping your UMID. To keep the community safe, never leave a door propped open unattended, including the door to the screened porch. Likewise, all windows should be kept locked and shut when not in use. Housing Security officers conduct walk-throughs of Henderson House on a daily basis; residents are encouraged to contact them if they are locked out and/or notice any suspicious activity. They can be reached by calling 734-763-1131.