Since Watson is a cloud service, security and data privacy are important. This paper on Watson, Watson Developer Cloud, Bluemix and Softlayer is a great overview that should bring some clarity and comfort on the topic.
Watson Developer Cloud Services Security Overview

The gap between words and action in cognitive business

One of the biggest challenges with the cognitive era and for enterprises to adopt this shift is in my opinion, two things. The first is the gap between the tech and the business. The second one is that most companies selling this tech have a salesforce that is used to sell other things and have not had time to adapt to selling cloud-based cognitive solutions. Continue reading The gap between words and action in cognitive business