One speaker at this summer's Defcon, an annual hackers conference, advocated disrupting the convention. Not many hackers are warning of electronic disruption. 'Hackers are interested in what the cops are doing, how the city is being operated during that (convention) period, what kinds of technology are being implemented here for the first time, as well as all sorts of ways to infiltrate and spread information.' 'The word 'target' is inappropriate,' said Emmanuel Goldstein, editor and publisher of 2600, a hacking magazine.