If we work in an office where many people can have access to our Mac, it is likely that the main security measure we have is a password that allows access to our Mac when it has been a while without using it or when we have closed session to do other steps. But it may be the case that at some point we forget to log out and the data stored by our Mac is at the hand of anyone who passes by. Fortunately, in the Mac App Store we can also find a solution for this problem in the form of an application, an application that once installed will prevent information from being extracted from our Mac and copied onto a USB, memory card, through a firewire port ...
As the developer says, it is likely that the movie Iron Man comes to mind, when Stark's secretary visits the office of the bad guy on duty to copy data from his computer. This problem with plugSHIELD will not happen. Once we have installed plugSHIELD every time a device is connected where we can copy information, it will be disconnected immediately, making it impossible for the files on our Mac to go out in any direction.
Obviously, so that it is not so easy to disable this application, we must deactivate the option to show the icon in our dock, so that it cannot be forced to close just by taking a look at the dock of our Mac, although it is likely that if The person who wants to obtain our files is not very upset, he will not realize it at any time, but prevention is better than cure. We can and We must protect the closure of the application in the upper menu bar to prevent it from being closed as well and let your action be useful.
plugSHIELD has a regular price in the Mac App Store of 9,99 euros, requires macOS 10.8, occupies just over 2 MB on our Mac and is available only in English.