1. Privacy=Secret
CHIHUA WANG

2. What is privacy?

3. Official Definition
Privacy is the ability of an individual or group to seclude themselves, or information about themselves, and thereby express themselves selectively. 

4. Types Of Privacy Privacy of individual Privacy of communication
Privacy of location and space

5. Privacy of individual
Privacy of the person is thought to be conducive to individual feelings of freedom and helps to support a wealthy, well-adjusted democratic society. For example,
Your Name
Portrait
Phone number
Personal wealth
Private life between husband and wife or yourself

6. Privacy of communication
It aims to avoid the interception of communications, including mail interception, the use of bugs, directional microphones, telephone or wireless communication interception or recording and access to messages.
and SMS
Human relations in society
Chat with your friends
Social Apps such as Facebook

7. Privacy of location and space
Individuals have the right to move about in public or semi-public space without being identified, tracked or monitored. This conception of privacy also includes a right to solitude and a right to privacy in spaces such as the home, the car or the office. Such a conception of privacy has social value. When citizens are free to move about public space without fear of identification, monitoring or tracking, they experience a sense of living in a democracy and experiencing freedom. Both these subjective feelings contribute to a healthy, well-adjusted democracy.
Private fiefdom
A permanent place (home addresses include yourself, your parents, your cousin and brother or sister)

8. Privacy law
The right to privacy is not explicitly stated anywhere in the Bill of Rights. The idea of a right to privacy was first addressed within a legal context in the United States. Louis Brandeis (later a Supreme Court justice) and another young lawyer, Samuel D. Warren, published an article called "The Right to Privacy" in the Harvard Law Review in 1890 arguing that the U.S. Constitution and common law allowed for the deduction of a general "right to privacy".
Their project was never entirely successful, and the renowned tort expert Dean Prosser argued that "privacy" was composed of four separate torts, the only unifying element of which was a (vague) "right to be left alone". The four torts were:
1. Appropriating the plaintiff's identity for the defendant's benefit
2. Placing the plaintiff in a false light in the public eye
3. Publicly disclosing private facts about the plaintiff
4. Unreasonably intruding upon the seclusion or solitude of the plaintiff

9. How should we protect our privacy?
your-privacy-right-now/