Good building security seems rare. I've been pretty surprised at the number of problems I've seen in SF buildings where thieves hit the mail room and bike stor

Good building security seems rare. I've been pretty surprised at the number of problems I've seen in SF buildings where thieves hit the mail room and bike storage regularly by just following residents in from the street. Depending on how easy it is to tell if you are home it might be helpful to install a doorcam. That way when thieves knock to see if you are home you can answer remotely.