Weak signal detection and ISO 31000

Answer: I'm assuming that by "weak signal detection" you are referring to an ongoing process of scanning an environment for changes, although they are still too incomplete to allow an accurate estimate of their impact and/or to determine a full adapted response.

Considering that, this approach can relate to risk identification, risk analysis and risk monitoring steps from ISO 31000 risk management process. These steps require the identification of risk sources, impacts and events, the understanding of how they can affect the organization, and the periodic review of those risks.

In case the information gathered by the weak signal detection is not sufficient to estimate impact and/or to determine proper response, you can decide to only monitor the related risks waiting for additional information to arise.

This article will provide you further explanation about ISO 31000:
- ISO 31000 and ISO 27001 – How are they related? https://advisera.com/27001academy/blog/2014/03/31/iso-31000-and-iso-27001-how-are-they-related/