System Peril Distributed Reflex
From Halopedia, the Halo wiki
The System Peril Distributed Reflex (or SPDR, pronounced "spider") is an automated program placed in UNSC AIs to assist the AI in repair when it becomes too damaged to function properly on its own.
I Love Bees
- Main article: I Love Bees Synopsis
When a temporal rip caused Melissa to crash into the ilovebees server in 2004, her SPDR repaired her greatly and fought to remove the threat of the Seeker, a malicious Covenant AI, eventually succeeding. Before it did, however, the Seeker absorbed the SPDR's language and impersonated it.
Melissa was too damaged to tell the difference and temporally disabled the real SPDR, allowing the Seeker to corrupt her. When the rip closed and sent her back home, the Seeker and the SPDR were left alone in the ilovebees server. The SPDR killed the Seeker and prepared the server to keep it fuctional for 500 years until it could send itself and the information it had gathered to UNSC forces.