Noun
censorware (uncountable)
(computing) Software or hardware used to filter content on the Internet or block Internet access or restrict the running of applications or computer usage, on the basis of content being regarded as objectionable.
In the late 1990s, groups such as the Censorware Project began reverse-engineering the content-control software and decrypting the blacklists to determine what kind of sites the software blocked. Source: Internet