"UK ISPs told David Cameron's adviser that they will not ban porn by default to prevent the sexualisation of children.

Claire Perry announced that by 2014 UK ISPs would require customers wishing to access adult content to "opt out". The Tory MP also told a conference the filters should be flexible enough to be turned off - for a limited time. The default setting would then return.

Nicholas Lansman, secretary general of trade association ISPA, which represents the UK's net suppliers, said that Perry’s comments were a bit premature."