One of the founding members of the L0pht Heavy Industries team responsible for producing the L0pht bulletin was Peiter Zatko, more commonly known in the Computer Underground as Mudge. Mudge gained notoriety in 1998 when he and other L0pht members testified before a Senate committee that they could take down the Internet in 30 minutes. Thus, the members argued, sound computer system security is a must in a wired (and now wireless) world. A highly sought-after computer security consultant, Mudge not only left the security firm @stake Inc. several years ago but also stayed away from the security industry for a while. Finally, in February 2005, Zatko decided to come back to the security field by joining BBN Technologies Inc. Zatko had, in fact, been employed there in the 1990s. BBN Technologies Inc. is best known as the contractor responsible for building ARPANET.