National Instruction on Classified Information Spillage

Citation
Committee on National Security Systems, National Instruction On Classified Information Spillage (CNSSI-1001) (Feb. 2008) (full-text).

Overview
This instruction establishes the minimum actions required when responding to an information spillage of classified national security information onto an unclassified information system (IS), or higher-level classified information onto a lower level classified IS or onto a system not accredited to that category (i.e., restrictive label) of information, to include non-government systems.