In this initial step, our goal is to pinpoint the specific data that requires sanitization. Have you ever wondered which datasets hold sensitive information that could be misused if not protected? By identifying these data, we set the foundation for effective sanitization, shielding your organization from potential risks. Challenges might include an underestimation of datasets' complexities, but these are easily overcome with a thorough checklist and team collaboration. Required resources include a data inventory and analysis tools.