Neural implants

Neural implants (Brain implants) are the implants of the brain of an individual, and can be used after their death.

Neural implants were the implants from an individuals brain, and could be used for security passes even after the original individuals death. A prime example of this was when the Master Chief and Cortana used Jacob Keyes neural implants on the starship Pillar of Autumn, after he became a member of the Flood.