If you’re responsible for physical security, then you might be familiar with the concept of “mean time to innocence”. It’s an IT term that highlights how the network is often blamed for problems, and how the IT team needs to quickly get to the real root cause in order to show that the network is “innocent”. Same thing happens in physical security; for example, if video is not recording properly it often is blamed on the camera device when the root cause may be an issue with storage.