SCP stands for Secure, Contain, Protect, which is the motto of an online collaborative fiction writing project known as the SCP Foundation. The SCP Foundation is a fictional organization that is responsible for containing and studying anomalous objects, entities, and phenomena that pose a threat to humanity.

SCP Foundation is a community-driven website where writers can contribute their own SCP entries, which are essentially short stories or descriptions of anomalous objects, entities, or phenomena. Each SCP entry is assigned a unique number, which serves as its identifier within the Foundation's database. Some SCPs are benign and harmless, while others are incredibly dangerous and require extreme caution to contain.

The SCP Foundation has gained a significant following and has become a popular subject for online discussion and analysis. The SCP Wiki contains thousands of entries, ranging from humorous to horrifying, and has inspired numerous spin-off works, including video games, podcasts, and webcomics.

One of the most popular SCPs is SCP-173, which is a humanoid statue that can only move when it is not being observed. SCP-173 is incredibly dangerous and has been known to snap the necks of anyone who blinks or turns away from it. Another well-known SCP is SCP-096, which is a humanoid creature that becomes incredibly violent when it is viewed by anyone who is not authorized to do so. SCP-096 is known for its terrifying appearance and has been the subject of numerous fan-made videos and animations.

In conclusion, SCP is a fictional organization that is responsible for containing and studying anomalous objects, entities, and phenomena that pose a threat to humanity. The SCP Foundation is a community-driven website where writers can contribute their own SCP entries, which are essentially short stories or descriptions of anomalous objects, entities, or phenomena. SCP has become a popular subject for online discussion and analysis, and has inspired numerous spin-off works.