Which SCI control system is designed to protect human intelligence?

The Sensitive Compartmented Information (SCI) control system designed to protect human intelligence is known as the Human Intelligence (HUMINT) control system. This system emphasizes safeguarding the sources and methods used in collecting human intelligence to prevent disclosure that could compromise operations or personnel. It involves strict access controls and compartmentalization to ensure that sensitive information is only shared with authorized individuals. Additionally, training and protocols are established to mitigate risks associated with HUMINT operations.