... [ 91] ; Darwin is described in [9, 2 01] . 11 0 Bontchev [46]. 11 1 Vossen [338] and van het Groenewoud [3 31] , respectively. 11 2 This definition of spy ware and adware follows Gordon [12 4]. 11 3 ... [336]. 10 3 Anderson [12 ]. 10 4 A sidebar in Harley et al. [13 7, page 60] has an amusing collection of suggested plural forms that didn't make the cut. 10 5 Benford [33] and Gerrold [11 8], ... counted. 19 69 - Benford's viruses 19 72 - Trojan horses known C.I 980 - Xerox worm experiments 19 83 - Cohen's virus woric 19 88 - Internet worm 19 69 - Moon landing 19 81 - IBM PC...