Overview: The Special Security Office (SSO) Security Specialist Level I supports day-to-day Sensitive Compartmented Information (SCI) security operations, including SCIF access control, visitor screening, SCI indoctrination and debriefing support, classified material handling, records maintenance, courier support, and assistance with annual SCI training tracking. • Support the receipt, staging, transport, storage, safeguarding, installation, initialization, and operation of Cryptographically Controlled Items (CCI), COMSEC equipment, and associated Key Material (KEYMAT), including Secure Telephone Equipment (STE).