Network owners may use filtering software to prevent access to certain websites. Telecommunications carriers, including mobile carriers, may install specialized software and hardware equipment to censor certain types of web content. All traffic that enters or leaves the country potentially can be blocked via national gateways or firewalls. All popular search engines have some kind of ‘Safe search’ option, when all ambiguous search results, including porn, are filtered out.Ĭontent-blocking techniques can be used at different levels: Blocking by IP address and deep packet inspection blocking are used to restrict access when a browser establishes connection to a server or requests content from it. As a result, the website doesn’t give the IP address in response to the browser request and the user can’t get access to the website. DNS-based blocking disrupts the domain name resolution process when a user's device searches for an IP address of a website by its domain name. Here are methods that are commonly used to block access to websites: Porn is often blocked in hotels to save bandwidth and reduce bills from internet providers. Network owners block porn to prevent access to it at places where watching such content is unacceptable. However, you can face problems accessing porn even in countries where the government doesn't prohibit it. In such countries as China, Philippines, India, Thailand, Iran, Iraq, Pakistan, Afghanistan, and others, watching porn is illegal, and, naturally, all websites with adult content are blocked. This isn’t the first time a NIT has been used to find someone using the dark web for nefarious purposes, and it won’t be the last.Accessing porn websites might be a complicated thing. He is now free on a $150,000 bond.Īccording to the FBI, Escobosa joined the notorious Playpen website on February 4 using the handle Fraud92787, and on one day alone in March, found 70 indecent pictures of three girls aged between five and eight. After he was cuffed, Escobosa kept his mouth shut and demanded a lawyer, then admitted to the Feds he had cruised websites looking for unspeakable images.Įscobosa was then given a polygraph test to determine if he had physically abused children, which showed he had not. The investigators said Escobosa thought he kept no copies of illegal imagery on his PC, but agents found 115 child sex abuse images stored in the thumbnail cache of his Tor browser – plus logs of IRC chats with other pedophiles. After determining his home address from the ISP using a subpoena, FBI agents got a search warrant, and snatched the man’s computers in late June. In Escobosa’s case, the software reported back he was using a computer in Staten Island via Verizon’s fiber service. The Feds can then, in most cases, read off the user’s real public IP address from this connection, unmasking the scumbag. This Flash file is run in Adobe’s plugin, and establishes a direct connection to an FBI-controlled server on the public internet without going through Tor. While the Escobosa indictment doesn’t give details, other court documents have stated that the software was developed by adapting a tool written by white hat hacker HD Moore called the Metasploit Decloaking Engine.Ī NIT works like this: a file, typically a Flash file, is hosted by a seized child porn website, and sent to web browsers when perverts visit the hidden service via Tor. The FBI has been using NITs for over a decade. Instead, the FBI deployed a NIT – a “network investigative technique,” or what in the hands of criminals would be termed spyware. Because users had to use Tor to access the warped website, the web server’s logs were of little use to investigators – they simply listed the exit nodes of the anonymizing network.
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