website introduction：ThinkGeek sells a variety of unique goods for technology enthusiasts. From a t-shirt with the caffeine molecule printed on it, to virtual laser keyboards. Both whimsical and cutting edge goods for every geek.
website introduction：Magazine that celebrates your right to tweak, hack, and bend any technology to your own will.
website introduction：A hardware hack every day.
website introduction：An archive of exploits and vulnerable software by Offensive Security. The site collects exploits from submissions and mailing lists and concentrates them in a single database.
website introduction：Developers of Kali Linux and Exploit DB, and the creators of the Metasploit Unleashed and Penetration Testing with Kali Linux course.
website introduction：The Black Hat Briefings have become the biggest and the most important security conference series in the world by sticking to our core value: serving the information security community by delivering timely, actionable security information in a friendly, vendor-neutral environment.
website introduction：Non-profit scientific organisation intended to further research in cryptology.
website introduction：List of 75 security tools based on a 2003 vote by hackers.
website introduction：Information about the largest annual hacker convention in the US, including past speeches, video, archives, and updates on the next upcoming show as well as links and other details.
website introduction：A resource for DIY project documentation as well as general gadget and technology news.
website introduction：Offers up-to-date .NFO files and reviews on the latest pirate software releases.
website introduction：A collection of internet and computer security resources.
website introduction：Place for programmers and hackers to hone their technical skills by completing challenging wargames and programming challenges. Includes network programming, defeating PaX, buffer/heap overflows, and format strings.
website introduction：Website of former member of L0pht Heavy Industries and editor of the Hacker News Network. Biography and articles.
website introduction：Digital hacking magazine.
website introduction：Discussions on the freedom to understand, discuss, repair, and modify the technological devices you own.
website introduction：Features papers, books, links, magazines, a virus collection, virus creation tools, polymorphic engines and provides free hosting for virus authors.
website introduction：Contains projects, papers and tools.
website introduction：Newbie-oriented tutorials about stuff like UNIX and system penetration auditing.