Good physical security of your systems, workspaces and people can go a long way to preventing many security incidents. Physical security applied to your systems can take the form of locked data centers, and locking cables that prevent laptops and desktops from being stolen. The biggest culprit here is tailgating one employee badges-in to open a door and multiple people follow her into the office. Pay attention to the changing dynamics of your employees, and managers can be trained to look for the signs of an employees pending departure.”]
Source: https://www.csoonline.com/article/3319516/remember-its-not-all-about-the-1s-and-0s.html