Having chosen a path, adversaries pre-position the specific packages and procedures they intend to use: binary exploits, malicious tables and ephemerides, patch images, modem profiles, and operator macros that chain actions. On compromised or leased infrastructure, they stage these items where execution will be fastest, provider portals, scheduler queues, ground station file drops, or automation repos, with triggers tied to pass start, beacon acquisition, or operator shift changes. Artifacts are formatted to mission protocols (framing, CRC/MAC, timetags), chunked to meet rate/size constraints, and signed or wrapped to evade superficial checks. Anti-forensics (timestamp tampering, log suppression, ephemeral storage) reduce audit visibility, while fallback payloads are kept for alternate modes (safe-mode dictionaries, recovery consoles).
| ID | Name | Tiering | Description | NIST Rev5 | ISO 27001 | Onboard SV | Ground | |
| CM0009 | Threat Intelligence Program | A threat intelligence program enables an organization to systematically collect, analyze, and apply information about adversary capabilities, infrastructure, and intent to inform defensive priorities and drive risk-informed security decisions across the mission lifecycle. For space missions specifically, this may include leveraging available all-source intelligence services or commercial satellite imagery to identify and monitor adversary infrastructure development and acquisition activities that may signal emerging threats to mission assets. Threat intelligence outputs should be operationalized into concrete adjustments to defensive architecture, monitoring priorities, and incident response posture rather than treated as informational products alone. Direct countermeasures against adversary infrastructure identified through this program will fall outside the scope of the mission in the majority of cases; the primary value of the program is in generating actionable awareness that sharpens the organization's own defensive posture. | PM-16 PM-16(1) RA-10 RA-3 RA-3(2) RA-3(3) SA-3 SA-8 SI-4(24) SR-8 | A.5.7 A.5.7 6.1.2 8.2 9.3.2 A.8.8 A.5.7 A.5.2 A.5.8 A.8.25 A.8.31 A.8.27 A.8.28 | ||||
| CM0005 | Ground-based Countermeasures | Ground-based countermeasures protect the terrestrial capabilities that develop, launch, command, monitor, operate, secure, and sustain space missions. These capabilities may be distributed across mission-owned systems, contractor environments, external partners, and commercial service providers. Because ground segment architectures and responsibilities vary, cybersecurity protections should be selected through threat-informed analysis of the mission functions being performed rather than through indiscriminate application of a single control set. The SPARTA Ground Segment Cyber Defenses guidance provides an interactive functional decomposition that maps ground segment function groups to applicable Defense-in-Depth sub-layers and countermeasure targets. The supporting report, VTR-2026-00702 Rev A, Ground Segment Cyber Defenses and Risk-Based Tiering, provides the methodology, definitions, and risk-tier rationale. The accompanying Ground Segment Cyber Defenses Excel Workbook consolidates the function mappings and Baseline and Enhanced countermeasure guidance into a resource that can be tailored to a specific mission architecture. | SPARTA Ground Segment Cyber Defenses guidance | None | ||||