Which ISO standard outlines principles for incident investigation processes?

The correct choice is ISO/IEC 27043:2015, which specifically addresses the principles for incident investigation processes. This standard provides guidance on how to investigate incidents in a systematic and effective manner, detailing the necessary steps to properly analyze incidents related to information security. It emphasizes the importance of document management, the roles of individuals involved in the investigation, and the processes to ensure that findings can be substantiated.

ISO/IEC 27043:2015 serves as a critical component for organizations looking to enhance their incident response and is designed to work alongside other standards within the ISO/IEC 27000 series, which collectively cover broader aspects of information security management. This makes it essential for developing comprehensive incident management strategies that are in line with international best practices.