Topic

Monitoring with real-time alerting for online services

Applicable to

all

History

Priority

should

Jun 2023

Removed

The existing control relating to performing availability monitoring to detect denial-of-service attacks was rescinded due to overlap with control ISM-1431 that recommends denial-of-service attack mitigation strategies be discussed with cloud service providers (including availability monitoring and thresholds for notification of denial-of-service attacks).

Dec 2021

Availability monitoring with real-time alerting is implemented for online services to detect denial-of-service attacks and measure their impact.

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.

2015

Availability monitoring with real-time alerting should be implemented to detect an attempteddenial of service and measure its impact.