SCP-1048 comes from the SCP Foundation, a collaborative online horror universe built around fictional anomalous creatures and objects. In that lore, SCP-1048 is a teddy bear that creates hostile copies of itself, and 1048-A is one of its dangerous creations, known for its unsettling cry. The scream spread through horror gameplay videos, SCP readings, and soundboards, where fans reused it as a shorthand for sudden SCP danger. It remains popular because the short, piercing sound works like a jumpscare scream, instantly telling viewers that something from the SCP world has arrived.