ISO/IEC 27042:2015 provides guidelines for the analysis and interpretation of digital evidence. It focuses on ensuring the continuity, validity, reproducibility, and repeatability of digital evidence analysis. The standard outlines best practices for selecting, designing, and implementing analytical processes, and emphasizes the importance of recording sufficient information to allow independent scrutiny.
Key aspects covered include:
Continuity: Ensuring the integrity and chain of custody of digital evidence.
Validity: Using methods that are scientifically sound and legally defensible.
Reproducibility and Repeatability: Ensuring that the analysis can be repeated with the same results by different analysts.
Structured Approach: Following a systematic method for analyzing digital evidence.
Uncertainty: Addressing and documenting any uncertainties in the analysis process.
The standard also provides guidance on demonstrating the proficiency and competence of the investigative team and offers a common framework for handling information systems security incidents.