ALWAYS Be careful when downloading mods online, some may contain viruses or harmful software.

A website which i would suggest for security breach mods would be gamebanana.com They offer a wide variety of mods which you can use. Even though this website is safe, still check the user who posted the mod, status of the mod and the reviews to ensure a safe install.

I would also create back up game files just in case the game files corrupt. This can be done by clicking on back up game files after right clicking the game and pressing manage which can visually be seen on steps 1 and 2.

Step 1

Right click Security Breach on the list of games on your screen, once you've done so, you should see a menu like this



Step 2

Hover over Manage then click Browse local files



Step 3

Once you've pressed Browse local files, this screen should appear, click on fnaf9



Step 4

Once you've reached this screen, click on content



Step 5

From this screen, click on Paks



Step 6

You should have now reached this screen and have these files already in the folder



Now drag the mods you installed which include the word pak in them at the end

EXAMPLE

Mod Folder


Game Folder


Creator Of BackStage Plus Mod - polarsends

Deleting the mods is just right clicking on the mods which you added and then deleting the ones which you installed.