The following information comes from Wikileaks has posted the vast majority of the Sony Pictures Entertainment (SPE) Hacking Scandal LEAKED DOCUMENTS, and SONY ARCHIVES to include their discussions about becoming involved in, "Blocking Domains" from being accessed by individuals'.
This is a small example of how extensive Sony Pictures Entertainment in particular have a very close relationship with the U.S. Government, in particular the Department of Defense / NSA, Alpha Agencies, and external third party corporate alliances.
The three page document is of interest to any Targeted Individual, such as myself who sustains heavy Electronic Warfare, Computer Network Exploitation, and Computer Network Attacks, in which I have been constantly and continually denied access, sent to a fake website, timed out, slowed down, via Man-In-The-Middle, Man-On-The-Side, Malware, Spyware, and other Application Coding to Disrupt, Deny, Degrade, and/or Destroy desktop and online capabilities - based upon criminal, warrantless access and interferences.
The documents provide a very good Explanation of WHAT Transpires, and HOW it can be done, while utilizing the Internet, and Sony, along with others from within the Entertainment Industry have discussed ways in which, "They" could block an individual from accessing various Domains/Websites.
As it is known, I was a former Employee of Sony Pictures Entertainment in the Television Production Accounting division, working as a Senior Production Accountant - UNTIL - they were approached by an EXTERNAL third party who had Profiled, Privately Held Information about me, to include INFORMATION about what I had i.e. papers, documents, spending habits, online searches, etc that were placed, hidden, or done within the privacy of my HOME.
THIS INFORMATION WAS THEN PROVIDED TO SONY PICTURES ENTERTAINMENT, ALONG WITH PSY-OPERATORS - TO ASSIST in how to DEPLOY and UTILIZE their ACCESS to private information held or conducted within the privacy of my HOME - utilizing KEYWORD-ASSOCIATIONS, so as to let me know - THE INFORMATION was UNIQUE or ONLY KNOWN to ME. THE ABSOLUTE INVASION OF PRIACY AND SHEER TERROR - of an External third party (GOVERNMENT) sharing your PRIVATE INFORMATION with a Corporation (SONY) to Terrorize, Traumatize, and Harass you out of your JOB -
IT STARTED IN THE WORKPLACE at SONY PICTURES ENTERTAINMENT