▁ 7 4 % ▁of ▁all ▁copy right - in fr ing ing ▁download s ▁in ▁the ▁UK , ▁and ▁that ▁ 2 9 % ▁of ▁all ▁download s ▁are ▁of ▁content ▁which ▁viol ates ▁copy right . ▁ ▁In ▁October ▁ 2 0 1 4 ▁the ▁first ▁blocking ▁order ▁against ▁tra dem ark ▁in fr ing ing ▁consumer ▁goods ▁was ▁passed ▁against ▁the ▁major ▁UK ▁I SP s ▁by ▁Rich em ont , ▁Cart ier ▁International ▁and ▁Mont bl anc ▁to ▁block ▁several ▁domains . ▁ ▁I SP ▁Default ▁network ▁blocking ▁Internet ▁customers ▁in ▁the ▁UK ▁are ▁prohib ited ▁from ▁accessing ▁a ▁range ▁of ▁web ▁sites ▁by ▁default , ▁because ▁they ▁have ▁their ▁Internet ▁access ▁filtered ▁by ▁their ▁I SP s . ▁The ▁filtering ▁program ▁has ▁applied ▁to ▁new ▁I SP ▁customers ▁since ▁the ▁end ▁of ▁ 2 0 1 3 , ▁and ▁has ▁been ▁extended ▁to ▁existing ▁users ▁on ▁a ▁rolling ▁basis . ▁A ▁volunt ary ▁code ▁of ▁practice ▁agreed ▁by ▁all ▁four ▁major ▁I SP s ▁means ▁that ▁customers ▁have ▁to ▁' opt ▁out ' ▁of ▁the ▁I SP ▁filtering ▁to ▁gain ▁access ▁to ▁the ▁blocked ▁content . ▁However , ▁the ▁complex ▁nature ▁of ▁the ▁active ▁monitoring ▁systems ▁means ▁that ▁users ▁cannot ▁usually ▁opt ▁out ▁of ▁the ▁monitoring ▁and ▁re - rout ing ▁of ▁their ▁data ▁traffic , ▁something ▁which ▁may ▁render ▁their ▁data ▁security ▁vulner able . ▁The ▁range ▁of ▁content ▁blocked ▁by ▁I SP s ▁can ▁be ▁varied ▁over ▁time . ▁C ategories ▁blocked ▁across ▁the ▁major ▁I