They look like little hologram note pads, and once you collect them; they are automatically saved and will not appear in your next play-through.
It’s a cumulative achievement or trophy; you can select any chapter to play and pick up the remaining Security-COMs You can check your progress by going to the chapter select menu.
It will show you how many you still have to collect in a specific chapter and also within that chapter which act you need to play again to collect certain Security-COM.
Binary Domain Security-Com Locations Videos
There are 40 Security-COMS in Binary Domain and these videos will walk you through the location of each Security-Com: