Independent assessments of continuous monitoring programs help confirm that the right telemetry points, software logs, and on-board sensor readings are being collected and analyzed to detect cyber anomalies. For space platforms, an outside reviewer might validate whether the mission captures relevant cues, such as unanticipated command replays or unapproved frequency changes, that could indicate an impending intrusion. They may also evaluate how well ground control stations ingest and process these telemetry streams in near-real-time. Bringing in a fresh perspective ensures that blind spots are minimized and that updated red-teaming or table-top exercises appropriately challenge the spacecraft’s monitoring architecture.
Continuous monitoring maintains persistent, real-time or near-real-time visibility into the security posture of spacecraft, ground systems, and mission networks, providing the ongoing situational awareness required to support informed risk management decisions throughout the mission lifecycle. Unlike point-in-time assessments that capture a snapshot of security posture at a specific moment, continuous monitoring detects changes in system configuration, software vulnerabilities, threat indicators, and control effectiveness as they occur, enabling faster detection of and response to security-relevant events before they escalate into mission-impacting incidents. For space missions, continuous monitoring spans both the cyber domain, including ground system network activity, software configuration compliance, vulnerability status, and access control events, and the physical and operational domains, including spacecraft telemetry indicators of anomalous behavior, link quality indicators of potential radio frequency (RF) interference, and space domain awareness data indicating proximity threats. The output of continuous monitoring feeds directly into risk management decision-making, providing mission owners and security teams with the current information needed to prioritize remediation actions, authorize changes, and adjust defensive posture in response to the evolving threat and vulnerability landscape.
Exploit ground system and use to maliciously to interact with the spacecraft
Sample Requirements
SPARTA ID
Requirement
Rationale/Additional Guidance/Notes
SPR-378
The [organization] shall establish and maintain processes to manage and oversee independent assessors, including their qualifications, roles, and responsibilities.{SV-DCO-1}{CA-2(1),CA-7(1)}
Independent assessors shall be individuals or entities external to the operational chain of command and not involved in the development, implementation, or operations of the system under assessment.
SPR-383
The [organization] shall employ independent assessors or assessment teams to monitor the effectiveness of security controls in the system on an ongoing basis.{SV-DCO-1}{CA-7(1)}