Today enterprises are increasingly leveraging hybrid cloud data lakes while taking advantage of the elastic resources and services available in the public cloud. However, such gains come with risks and challenges in the areas of security and privacy. In this talk, we will cover how an enterprise can use Apache Knox as a secure point of entry into a Multi-cluster hybrid cloud data lakes. We will outline how enterprises can securely test out new big data applications or concepts in the public cloud while protecting their production clusters on-premises. We will show how enterprises can leverage their existing on-premises Active Directory infrastructure for authenticating users trying to access their services in the cloud. Further, we will cover how you can leverage Apache Knox Authorization to thwart an unauthorized access to a multi-cloud and multi-cluster data lake and bring to bear Multi Factor Authentication (MFA) on Apache Knox to block a hacker with stolen credentials.