Which international standard guide provides procedures for incident investigation principles and processes?

The correct choice is indeed the ISO/IEC 27043:2015 standard. This international standard specifically outlines the principles and processes for incident investigation within the context of information security management. It provides a comprehensive framework that organizations can follow to not only conduct investigations into security incidents but also establish best practices for gathering evidence and ensuring that investigations are thorough and systematic.

ISO/IEC 27043 is designed to enhance the incident investigation process by promoting a structured approach, allowing organizations to effectively analyze incidents, learn from them, and implement measures to prevent future occurrences. This standard is particularly relevant in today's cybersecurity landscape where understanding the root causes of incidents is crucial in building robust security measures.

On the other hand, the other standards mentioned, while relevant to information security, focus on different areas. ISO/IEC 27034-1:2011 pertains to application security, ISO/IEC 27037:2012 covers the guidelines for the identification, collection, and preservation of digital evidence, and ISO/IEC 27001:2013 is primarily about information security management systems and how to establish, implement, maintain, and continuously improve an organization’s information security management. Thus, ISO/IEC 27043:2015 is the most suitable choice for incident