ɹˈɑːbɚt ɹˈɑːp vˈæləntˌeɪən ɡˈɔŋɡɹeɪp bˈɔːɹn fˈoːɹtiːn fˈɛbɹuːˌɛɹi nˈaɪntiːnhˈʌndɹɪd sˈɪksti ˈeɪt ɪz ɐ dˈʌtʃ hˈækɚ ænd wˈʌn ʌvðə fˈaʊndɚz ʌv ˌɛksˈɛs fˈoːɹ ˈɔːl.
Robbert (Rop) Valentijn Gonggrijp (born 14 February 1968) is a Dutch hacker and one of the founders of XS4ALL.