There is a saying in information technology that says "If you have a computer, don't use it" and this sound weird. Both my computers running Windows and Linux were hacked recently after I made a huge provocation on twitter. It's a freaking reality If you need to keep a confidential environment. Technically, all computers and mobile phone can be hacked moreover the telecoms company which provide your internet connection can use proxy and log your meta-data worst your social network connectivity can be analysed yet your are an idiot if you think you shouldn't use internet in most of common mortal life.
Hackers are well organized and America has a total control over information technology so that your computer is open to tiers persons or organizations. In 1997, Microsoft operating system Windows didn't even had a key to break into the system if it was connected to a printer then there is only one solution to ensure confidentiality "No connection". Your infrastructure must be outside the internet and your cloud must be at least hybrid while anonymous internet users like you and me need to be aware of what we let on our file system.
With Big Data comes big responsibilities ! Big Data is the ability to retrieve information from large volume of data and there will be less anonymous usage of the internet once operators implemented Big Data even with authentification uncertainty because it's impossible to know who was behind the computer. Cookies and logs will allow tiers persons or organizations to know much more about you than you had expected. It's already the case for supermarket fidelity cards, not mentioning various phishing website. Avoid to give your personal information over email unless it's absolutely necessary !
Last, social networking can quickly give an overview of your personality as well as multiple information about your interests, political orientation, network of friends ... etc We can be sure that any information available on your social network will be exploited by tiers persons or organizations. It's acting like a Black box that will reveal the nature of failures or success. Keep in mind that studying the sexuality of Chinese elderly is not a problem for the department of psychiatry in the faculty of medicine of Hong Kong University !!!
Imagine the doctor Gill before the creation of Montpelier faculty of medicine in the XII century guiding people while the next Saint in the church nearby was preaching for Christian doctrine. A brand new Christian world awakened with the new power of the Church followed by recent democratic and communist revolutions between the XVIII and XX centuries. Shall we follow a computer or does privacy really matters ? The digital transformation goes far beyond organizations. Donald Trump, Hillary Clinton, new French one term presidents and Chinese leaders know it very well.