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NIST SP 800-53A AC-20(01) .01
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Question: Does an examination of the information system connection or processing agreements account management documents show that the organization prohibits authorized individuals from using an external information system to access the information system or to process, store, or transmit organization-controlled information except in situations where the organization: (i) verifies, for authorized exceptions, the employment of required security controls on the external system as specified in the organization's information security policy and security plan when allowing connections to the external information system or (ii) approves, for authorized exceptions, information system connection or processing agreements with the organizational entity hosting the external information system ? |