What is Security Clearance in Dead Space remake and how to upgrade it?

sportskeeda.com:

The Dead Space remake is out right now, bringing the iconic 2008 survivor-horror classic to a brand new audience. It retains the fundamental gameplay, narrative, and atmosphere of the original, much to fans' delight. However, developer EA Motive has also introduced a number of improvements and changes to the game's design to make it the best Dead Space experience yet. One of these alterations is the inclusion of a Security Clearance system.

Unlike the original game, which was a fairly linear affair, Dead Space remake's setting of the USG Ishimura is a tad more expansive. This allows for backtracking between areas with relative ease. However, progression is barred depending on the level of Security Clearance possessed by the protagonist Isaac Clarke.

There are three levels to the Security Clearances in the game, and you need not worry about missing out on any of them. This is because all three can be obtained via natural story progression. Here is where you will find each of them:

With the final clearance level granted, players are free to explore every nook and cranny of the richly detailed USG Ishimura. Their main function is to allow Isaac to move through various levels of the ship. In addition to trudging the story along, they will also allow access to more upgrades and resources that were previously out of reach. These can be used to unlock new items for Isaac. This is crucial in making him stronger against the terrifying alien threat.

Acting as a remake of the first installment in the cherished survival horror franchise from EA, this new entry enhances Isaac Clarke's debut journey for a modern audience. Built from the ground up for current-gen consoles and PC, Canadian studio EA Motive has reanimated everything in a