Freedom of Expression Unfiltered: How blocking and filtering affect free speech

The Internet was designed to enable the free flow of information; however, technical measures restricting access to content are now worryingly commonplace in authoritarian and democratic countries alike. Whereas the Great Firewall of China used to be the most extreme example of how repressive governments seek to restrict freedom of expression online, European countries now increasingly rely on blocking measures to restrict access to copyright infringing or “extremist” websites.

Although a growing number of countries are turning to the removal of content rather than merely blocking access to it, ARTICLE 19 remains deeply concerned by content blocking/filtering.

–– Firstly, these measures are prima facie an interference with the fundamental right of every person to seek and exchange information and ideas.
–– Secondly, they are notoriously ineffective, as they involve risks of both overblocking and under-blocking content and as such amount to a violation of the right to freedom of expression.
–– Thirdly, blocking/filtering decisions usually lack transparency and are rarely ordered by a court. More often than not, they are adopted by either administrative authorities or through so-called ‘voluntary’ cooperation with
service providers.

As a result, many governments are now in breach of their obligations under international human rights law as a result of their use of blocking/filtering technologies. Even more disturbingly, vast swathes of information are
disappearing from the Internet without users even noticing. Blocking/filtering also contribute to the fragmentation of the Internet by reinstating borders, contrary to the medium’s architecture and design.