text_combined: gregory alan bolcer gbolcerendeavorscom hobos depression used use technique know could find meal bed friendly residents begging showed sladhdot june itll interesting see parallel sign hobo sign representing meal bed threatened imagine threatening someone get wireless another phenomenon internet connection sharing freely available modern oss easy way share 624hour period wireless conneciton san jose airport among dozens favorite friends httpnewsbbccouk1hitechnology2197252stm httpwwwblackbeltjonescomwarchalkingwarchalking0_9pdf friday 16 august 2002 1142 gmt 1242 uk fbi warns wireless craze fbi agents worried warchalking wellmeaning wireless activists caught attention us federal bureau investigation one agents issued warning popular practice using chalk marks show location wireless networks marks warchalks cropping cities suburbs across world fbi telling companies see chalk marks outside offices check security wireless networks ensure remain closed outsiders top marks warchalking phenomena couple months old generated huge amount interest idea behind warchalking use standardised set symbols mark existence wireless networks anyone use go online many community groups local governments even publicspirited companies setting wireless nodes give people fast net access symbol denotes closed wireless node wireless networks replace computer cables radio usually easy set connect many curious hackers gone wardriving expeditions involve driving around area logging location wireless networks many companies using wireless enough make secure stop people outside organisation using fbi issuing advice companies lookout warchalk marks pointer security wireless network notice symbols place business likely network identified publicly warns guidance fbi scare stories agent circulated warning pittsburgh said official fbi advisory policy information worth passing urged anyone using wireless network ensure secure used company wants access warchalkers questioned scare stories surrounding phenomena saying anyone malicious intent unlikely publicly mark target phrases wardriving warchalking derive early days computer hacking curious users programmed computers search phone lines returned data tones exhaustive searching known wardialling httpxentcommailmanlistinfofork sun 18 aug 2002 104716 0700 warchalking