SCP-1198: The Mysterious Endless Echo

A white circular emblem on a transparent checkerboard background, featuring the words 'SECURE', 'CONTAIN', and 'PROTECT' arched around the perimeter. Inside, a central downward-pointing arrow is surrounded by three outward-pointing arrows, forming a directional symbol. This is the official logo of the fictional organization 'Secure, Contain, Protect' from the video game 'Left 4 Dead'.