According to Chris Preimesberger over on eWeek, not very. That’s because it was originally designed for managing publicly available info, not sensitive corporate information. And its security limitations can leave a gaping security hole for the increasing number of enterprises that depend on it. It’s up to your organization to take additional steps to protect your data from the vulnerabilities of a Hadoop environment.
Check out the slideshow here:
http://www.eweek.com/security/slideshows/hadoop-poses-a-big-data-security-risk-10-reasons-why/