Step 3: When the Internet is Censored

Your access to information Online may be blocked for a variety of reasons. Parents and school administrators frequently try to control the material to which children are exposed; companies have regulations about acceptable use of the Internet in the workplace; countries pass laws and establish policies that not only criminalize the publication of certain content within their jurisdiction, but that prohibit access to similar content published elsewhere.
Increasingly, technical means are being used to enforce these controls.
Your employer might block requests to gaming sites and social media platforms from within the corporate firewall, and your government might

require that your ISP return a “Page not Found Error” in place of an opposition website or a podcast produced by independent media. Because governments, ISPs, and administrators of public and private access points can monitor at least some aspects of your Online activity, they can limit access to content they find objectionable.
Blocking and Filtering are the two terms most frequently used to describe the different mechanisms through which internet censorship takes place.
Blocking – Refers to the banning or blacklisting of certain web-pages, types of content, access channels, or protocols.
Filtering – Refers to the process of analyzing traffic data in order to determine whether or not it is attempting to access anything that has been banned or blacklisted.