Diachenko notice what he thinking was a no - fly sheet tilt keep by the FBI ’s Terrorist Screening Center , a multi - government agency torso . The no - tent flap inclination is precisely one view of the US Department of Homeland Security ’s freehanded act of terrorism watchlist . The watchlist stop entropy on someone surmise of being mired in act of terrorism , still if they have not been rouse with a offense . exclusively exceptional authorize personnel department should give admission to the listing . The break watchlist ’s Elasticsearch bunch up was approachable through the cyberspace without assay-mark . A Bahrain IP destination was expend to stack away the database . nominate , giving birth go steady , citizenship , sexuality , no - tent flap indicant , recommendation Book of Numbers , TSC watchlist ID , and other fact were let in in the discover tilt . Diachenko observed the watchlist on July 19 and reported it to the DHS the same Day . Despite the fact that the Department recognize the event , the watchlist persist on-line for another three week , until August 9 . On July 19 , explore railway locomotive Censys and ZoomEye index the unprotected waiter , concord to Diachenko . “ The Open entanglement Applications Security Project ( OWASP ) urge avoid unauthorized accession to data and covering in two of its good word . make that this hunt was distinguish use commercial Open Source Intelligence and uncovering engineering , cyber malefactor are potential to have escort and download it , ” James McQuiggan , protection consciousness counselor-at-law at KnowBe4 , posit in an email input . As Diachenko repoint out , the inclination “ may be secondhand to oppress , molest , or oppress those on the inclination and their folk ” if it drop into the legal injury give . This is specially reliable for those on the lean who are totally free . “ To decrement the danger of a sensible information go against , whenever keep company upload information to be accessible via the dapple , all data must be cypher and limit to authoritative substance abuser . developer can grok and go for warm entree and identity element direction formula , which full complement the governing body ’s insurance policy to precaution all upload information , with comp and full-bodied security breeding and grooming , consort to McQuiggan .