What is considered Sensitive Security Information (SSI)?

Sensitive Security Information (SSI) refers to specific information that, if disclosed, could compromise the security of transportation systems, individuals, or assets. This classification is meant to protect critical security measures and protocols that, if leaked, could provide adversaries with insights into vulnerabilities within security systems.

Transportation security information that may compromise confidentiality fits this definition accurately, as it encompasses details that could potentially lead to unauthorized access or harm. Unlike public transportation safety guidelines or general maintenance procedures, which are designed for broad communication and transparency, SSI is specifically sensitive due to the potential ramifications of that information being made public.

Daily schedules of crew members, while they could be considered confidential for operational security, do not necessarily fall under the same stringent category as SSI since they lack the direct connection to overarching security vulnerabilities inherent in transport security. Thus, option B provides a clear understanding of what constitutes Sensitive Security Information in the context of transportation security.