Why can’t I watch this video? You are unable to view this content as it is hosted by a third-party. In order to watch this video we need your permission to use marketing cookies.

Prevent identity attacks and secure access to apps and resources. Prevent identity attacks and secure access to applications and resources with strong authentication and risk-based conditional access ...

Abstract: Freemium seems a promising solution for content providers to earn money in times of the free mentality of Web 2.0 users. Freemium services can be used both for free or with a paid ...