You can physically break into any facility, if you have enough force. Social engineering is a different problem.
In your case, no exiting the alarmed back doors for break. Breaks are taken by exiting the front doors or in designated break areas.
There were no security doors that weren't manned. Positive identification was required, as was approval. No exceptions.
We worked with proprietary data at that facility. Sometimes, we'd even have to put a team at the customer's site. Once, I had to personally do all of it as there were only two of us with government security clearances. For that, I had to be on a military facility.
The latter being really, really silly. I can't be specific but it is fairly well known that I modeled traffic. Yup... That's what I did and the USG determined the data was marked at a higher level that FOUO.
In your case, no exiting the alarmed back doors for break. Breaks are taken by exiting the front doors or in designated break areas.
There were no security doors that weren't manned. Positive identification was required, as was approval. No exceptions.
We worked with proprietary data at that facility. Sometimes, we'd even have to put a team at the customer's site. Once, I had to personally do all of it as there were only two of us with government security clearances. For that, I had to be on a military facility.
The latter being really, really silly. I can't be specific but it is fairly well known that I modeled traffic. Yup... That's what I did and the USG determined the data was marked at a higher level that FOUO.