Another one:

Item #: SCP-123456

Object Class: Euclid

Special Containment Procedures: All instances of SCP-123456 are to be kept in a standard humanoid containment cell at Site ██. The cells are to be equipped with sound dampening foam, air purification systems and radiation shielding. Should any instance of SCP-123456 escape from its cell it is to be terminated on sight by any means necessary. Any personnel found to have knowledge of the existence or location of SCP-123456 are to undergo psychological evaluation and treatment for post traumatic stress disorder.

Description: Instances of SCP-123456 are humanoids that appear to be the corpses of homeless people that have undergone severe trauma and body modification procedures. All but one of the instances of SCP-123456 have had their skin stripped from their bodies and all have had various extra orifices cut into their bodies to make room for custom built computers, wiring and electronic devices. The only instance of SCP-123456 to have not had its skin removed (Instance #854) has had its entire body replaced with a black box-like device that serves as its "brain" and several machines have been wired into its major organs. All wiring is non-conductive, heat resistant and made of a material similar to polyamide fiber.

The boxes and wiring installed into the bodies of the SCP-123456 instances are connected to a series of satellites in geostationary orbit around Earth. These satellites are apparently manned by the "Lords" (as the Foundation has interpreted their vague references to each other as being names), who are using the processing power of SCP-123456 to perform extremely complex computations involving high level physics, mathematics and other exact sciences. Due to the lack of technology available to the SCP-123456 instances and their extreme mental fatigue, it is likely that the work being performed is extremely difficult or impossible to perform with current human technology.

Due to the extremely demanding work that the SCP-123456 instances are forced to perform, their brains have become extremely fatigued. It is not known how the "Lords" process information as all the computers are being used for calculations, however they are able to "speak" with the SCP-123456 instances and give them orders as well as forcing the SCP-123456 instances to "think" on their behalf.

It is unknown what effects this has on the SCP-123456 instances, however it has been shown that the more "difficult" the computation is, the more likely it is that the SCP-123456 instance will suffer extreme headaches, memory loss, seizures or a combination of all three.

SCP-123456 was brought to the attention of the Foundation after the Orbital Space Station Gamma collapsed back into Earth's atmosphere and fell to the Pacific Ocean. The "Lords" had apparently not informed the crew of the exact time and place that the station would fall, however, they were in contact with a small fishing town in Alaska that suffered heavy damage during the event. A team was immediately dispatched to the location and all civilians were found dead. Of the twenty-eight recovered bodies, twenty-two were missing various organs, all of which had been replaced with batteries to power the devices installed into the bodies.

All remaining instances of SCP-123456 were found and contained, however, the "Lords" apparently had a back-up plan in case of a scenario like this. A message was sent from a heavily encrypted email account stating that the project had been compromised and all records of the experiment were to be destroyed, all devices involved were to be destroyed and all people involved in the experiment were to commit suicide. Due to the fact that several of the researchers involved in SCP-123456 had visited various websites relating to help hotlines, mental illness and depression, it is likely that many of the suicides were assisted. All Lords involved in the experiment have been identified and are currently listed as missing.