Defined term
Interim Approval to Operate
Interim Approval to Operate: (IATO) (C.
Verified
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Cybersecurity
Definition
(IATO) (C. F. D.) Temporary authorization granted by principal accrediting authority (PAA) or authorizing official (AO) for an information system to process information based on preliminary results of a security evaluation of the system. (To be replaced by ATO and plan of action and milestones (POA&M)) Rationale: Term has been replaced by the term “authorization to operate (ATO)” with conditions.
Alternative Definitions
- Definition 2
(IATO) Temporary authorization granted by a DAA for an information system to process information based on preliminary results of a security evaluation of the system. (To be replaced by ATO and POA&M) (CNSSI-4009) (NISTIR)
Sources
1
Committee on National Security Systems Glossary CNSSI 4009-2015
View Source2
The Cyber Glossary
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