System owners deploying OFFICIAL: Sensitive or PROTECTED systems with radio frequency transmitters (including any wireless capabilities) that will be located within 20 meters of SECRET or TOP SECRET systems contact ASD for an emanation security threat assessment.
Topic
Emanation security threat assessments
Applicable to
Official, Protected
History
Priority
must
Dec 2023
System owners deploying OFFICIAL: Sensitive or PROTECTED systems with radio frequency transmitters (including any wireless capabilities) that will be located within 20 meters of SECRET or TOP SECRET systems contact ASD for an emanation security threat assessment.
The existing control relating to conducting emanation security threat assessments for OFFICIAL: Sensitive or PROTECTED systems that are co-located with SECRET or TOP SECRET systems was amended to clarify the requirement is only applicable when the systems are located within 20 meters of each other. [ISM-0248]
Sep 2023
System owners deploying OFFICIAL: Sensitive or PROTECTED systems with Radio Frequency transmitters that will be co-located with SECRET or TOP SECRET systems contact ASD for an emanation security threat assessment and implement any additional installation criteria derived from the threat assessment.
References to ‘OFFICIAL systems’, ‘OFFICIAL mobile devices’, ‘OFFICIAL cables’ and ‘OFFICIAL wall outlet boxes’ were replaced with OFFICIAL: Sensitive terminology (e.g. OFFICIAL: Sensitive mobile devices) to correctly reflect the highest sensitivity of data such systems, devices and infrastructure can process, store and communicate (i.e. up to Business Impact Level 2).
Sep 2023
System owners deploying OFFICIAL: Sensitive or PROTECTED systems with Radio Frequency transmitters that will be co-located with SECRET or TOP SECRET systems contact ASD for an emanation security threat assessment and implement any additional installation criteria derived from the threat assessment.
References to ‘ACSC’ were replaced with ‘ASD’.
Dec 2021
System owners deploying OFFICIAL or PROTECTED systems with Radio Frequency transmitters that will be co-located with SECRET or TOP SECRET systems contact the ACSC for an emanation security threat assessment and implement any additional installation criteria derived from the threat assessment.
Miscellaneous changes were made to rationale and security controls throughout the publication. This included:
• A review from the Using the Information Security Manual chapter through to the Guidelines for Media chapter.
• Security controls suitable for all audiences have been identified with the ‘All’ applicability marking while additional security controls suitable for just government audiences have been identified with the O, P, S and TS applicability markings.
• Security controls suitable for specific classifications have been amended to include their classification(s) in the wording of the security controls to reduce the reliance on applicability markings to confer suitability.
• Tables in security controls have been converted into prose to allow for inclusion in the SSP annex template and the XML list of security controls.
• The use of ‘official’ and ‘highly classified’ terminology has been replaced with specific classifications to remove ambiguity.
• Security controls relating to high assurance ICT equipment have had their applicability narrowed to ‘S, TS’ reflecting that they are intended for the protection of SECRET and TOP SECRET systems and data.
2017
Agencies designing and installing systems with RF transmitters that will be co-located withsystems of a higher classification must:• contact ASD for an emanation security threat assessment in accordance with the latestversion of ACSI 71• install cables and ICT equipment in accordance with this manual, plus any specificinstallation criteria derived from the emanation security threat assessment.
Control Text Changed. No public explaination.
2015
Agencies designing and installing systems with RF transmitters that co–locate with systems ofa higher classification must:• contact ASD for an emanation security threat assessment in accordance with the latestversion of ACSI 71• install cables and ICT equipment in accordance with this manual plus any specificinstallation criteria derived from the emanation security threat assessment.
2010
Agencies designing and installing systems with RF transmitters that co-locate with systems of a higherclassification must:• contact DSD for an emanation security threat assessment in accordance with the latest version of ACSI 71• install cabling and ICT equipment in accordance with this manual plus any specific installation criteriaderived from the emanation security threat assessment.