Security.

One of the common challenges companies face is that they want to centralize their data present in multiple systems like databases, Sales tools, HR systems, Finance systems, Marketing tools, file systems, and even event streams into their data warehouse for analysis. There are different levels of data privacy/security concerns for different kinds of data in each of these data sources. Several of these data sources, like production databases, Finance systems, and HR systems have really sensitive data like personally identifiable information (PII), personal health information (PHI), salary information, financial transactions of either employees or customers of those companies. And