Information Exchange
Information exchange is the passing of data or information from one person, system, or organization to another, often to accomplish a specific task or shared objective. In an information security context, it typically refers to transferring or granting access to data outside the boundaries of an authorized system. Because the data leaves its original controlled environment, exchanges are commonly governed by agreements that set out how the information must be protected.
Information exchange is defined by NIST as access to or the transfer of data outside of system authorization boundaries in order to accomplish a mission or business function. Where such exchanges occur, protection requirements and responsibilities are typically documented in an information exchange agreement, which specifies the safeguards applicable to information moving beyond a given system's authorization boundary. The term is also used more broadly to describe the bidirectional or unidirectional passing of information between persons or entities, and appears in domain-specific forms such as Health Information Exchange (HIE) and Community Information Exchange (CIE). This entry is educational and not a substitute for professional or legal advice; specific security, privacy, and contractual obligations vary by jurisdiction and applicable regulatory regime and should be confirmed against primary sources and qualified counsel.
Why it matters
When data moves outside the boundaries of an authorized system, it leaves the controls that were designed to protect it. That transition is where much of the risk in information handling concentrates: the receiving party may apply different safeguards, and accountability for the data can become ambiguous unless the terms of the exchange are set out in advance. For compliance and ethics program managers, information exchange is a recurring feature of vendor relationships, cross-border data flows, and interactions with regulators and partners, and each exchange can carry security, privacy, and contractual obligations that vary by jurisdiction and applicable regulatory regime.
Because of these risks, exchanges are commonly governed by an information exchange agreement, which NIST describes as a document specifying protection requirements and responsibilities for information being exchanged outside of system authorization boundaries. Such agreements are intended to clarify how information must be protected once it leaves its original controlled environment and who bears responsibility for that protection. They do not, by themselves, guarantee that information will be secure; their effectiveness depends on implementation, monitoring, and the diligence of the parties involved.
Information exchange also appears in domain-specific forms that carry their own regulatory expectations. Health Information Exchange (HIE) refers both to the process of securely sharing health-related data and to the organizations that facilitate it, while a Community Information Exchange (CIE) describes a network of health and human services partners that share data to coordinate care. These examples illustrate that the specific safeguards, privacy rules, and legal obligations attached to an exchange are highly context-dependent and should be confirmed against primary sources and qualified counsel.
Who it's relevant to
Inside Information Exchange
Common questions
Answers to the questions practitioners most commonly ask about Information Exchange.