Further, IT managers, whether utilizing an on-premises deployment or a managed services provider, must ensure the security of the data. Many managed service providers, such as Cloudera, offer security options like Project Rhino and Sentry, now both open source Hadoop security initiatives. Like Cloudera's Cloudera Navigator, some other managed service providers offer governance solutions to ensure legal compliance. Given the volumes of data and prevalence of hackers, viruses, and other security threats, this is one responsibility that cannot be taken too lightly.