Secure Contain Protect . SCP is a large organization created to keep 'creatures' from affecting human life. The current location of SCP Foundation is currently unknown and is said to be in Area 51. Safe (non-harmful), Euclid (unknown species and hard to classify), and Keeter (harmful to human life) 'beings' exist and are said to not leave anyone of the organization camps around the world. There are said to be currently 5000 SCP Creatures around the world and have yet to be found.
SCP-106 is also named as Old Man and is located in the category under Keeter. NO PERSONNEL would every enter it's containment as it is corrosive and kills it's subject once seen.