If you want your URL added, just send them to neil at defcon.org, but be sure to tell us what category you want to have it listed under!
NOTE: Report dead links! New links will be added as we receive them.
Commercial and Stuff to Buy
Hackerstickers.com: The official reseller for Defcon Swag
The Source of Knowledge: The official reseller of past Defcon and Black Hat audio and video recordings
Loompanics Unlimited: The Best Book Catalog In The World
NinjaGear: The hacker and geek gear too politically incorrect for the other guys
Wardriving Is Not A Crime: Wardriving T-shirt (men/women)
Hacker Stickers: Hacker related Stickers and T-Shirts
KeyKatcher Keystroke Loggers: 32k/64k models available
MECO: Govt. Surplus hardware and really neat toys
TCSM: Counter measures.
Smart Shield Protects 'Big Brother' from snarfing your smartcard info.
Bump My Lock Bump Keys, hammers, Lock picks and more (DC17 Vendor)
Government & Commercial Groups
C4I.org - Computer Security, & Intelligence
Info War a-la Winn Schwartau style. Lots of interesting stuff relating to information warfare.
Central Intelligence Agency (CIA)
National Security Agency (NSA)
International Computer Security Association (ICSA)
Secure Computing (Sidewinder Servers, etc.) has a security newsletter.
National Computer Security Resource Clearinghouse.
Web Site for Private Investigators
Department of Homeland Security
Groups & Organizations
ISO 17799 User Group: Main international user group of the international computer security
standard (6 August 2004)
WorldWide Wardrive (WWWD): Participate in the WorldWide Wardrive, stay informed here.
The Electronic Privacy Information Center keeps you informed about current privacy and legislative issues.
The Electronic Frontier Foundation keeps you informed about current privacy and legislative issues.
Computer Emergency Response Team. (CERT)
The Bodyguard Homepage, sponsored by IAAPS.
The Hacker's Defense Fund set up by Roaddancer.
Information & FAQs
Information Security Glossary: This resource will hopefully prove to be useful in helping you to understand the jargon and terminology used within the information security industry and sector
Xatrix Security: Links, free e-boooks, and lots more. (6 August 2004)
Social Engineering 101: Forum for Social Engineers to learn, and discuss.
HackWire.com: Hacker news
TiVo Techies: TiVo Hacks and Technical discussion forum.
Dsniff white paper in PDF format.
A good ISDN home page on the web at Cal Tech
The Simple Nomad's Nomad Mobile Research (NMRC) site. Looks very cool, contains good information, as well as the unofficial Novell and NT Hack FAQs.
The Windows NT Security FAQ
Hack Faq: old but a good place to start.
A Locksmithing FAQ.
MIT Guide to Lockpicking by Ted the Tool.
Cryptography FAQs from the usenet, etc.
Federal Guidelines for Searching and Seizing Computers.
How those 5 button Simplex locks work.
More satellite information surrounding IntelSat 809's launch.
All you ever wanted to know about satellites.
A very good source of info for getting started in the wonderful world of amateur SATCOM. Read. Learn. Enjoy! Feeeel the burn! Be one with the RF.
The Anime Music Network for Pirate Radio. Plans on how to build an FM station and also discusses the theory behind it.
Plans for how to build a pirate radio transmitter can be found here, here, or here at the free radio homesite.
FRM has how-to files, a message board, and I think a pirate log. M.I.T. Gallery of past hacks.
ExoCom: Hacker owned/operated ISP in the Southern California area.
Information Search Resources
Underground 100: Toplist for webmasters with websites of underground topics. (27 May 2004)
ForensicsX, a forum for the discussion of computer forensics and related matters.
Background Information Searches homepage.
The Dutch phonebook can be found on www.ptt-telecom.nl, under Telefoongids.
Australia's phone book.
Infobel has some of the same info for the Netherlands, Belgium, France (small bit) and Germany. Also some maps.
PublicData has a subscription service to search Texas Criminal records, and other public information.
This URL lists all the port numbers.
TRAC Transactional Records Access Clearinghouse. Your source for comprehensive, independent, and nonpartisan information on federal law enforcement.
Netcheck: a kind of internet better business bureau.
Switchboard Free surname searches, address, and telephone number criss-cross lookups.
Area Code Look Up DataBase
National Address Server US Post Office Database that actually corrects addresses and gives you zip plus 4.
SEC Filings search gives you detailed information on companies that trade their stock on the stock exchange.
Military Locator Service This database actually locates people in the military for you.
Four 11 People Finder is a good place to obtain e-mail addresses.
Inernet Address Finder will locate an e-mail address of almost four million people.
MapQuest Insert an address and get a street map
Ted The Tool's Guide to Lock Picking: 1991 newly refreshed by the themuffinking (5 Oct 2004)
Lockpicking 101 - forum based site where you can learn to "unlock your skills". Lockpicking, Locksmithing, Locks and Picks
Mac Security Related Resources
Mac Hacking Resource Center: The largest link page to the mac underground, support the community. (17 June 2004)
[ T S F ] The Shared Forums: Joint community forums of 3 of the largest mac hacking and security websites. (14 June 2004)
MacHacking.net: Free hosting for mac hacking and security web sites. (26 May 2004)
UndergroundMac.com: Most up-to-date mac hacking and security source. (26 May 2004)
SecureMac.com: Excellent archive of Mac security info
Freaky's Mac Archive: Freaky's collection of all things Mac security related
NT Security Related Resources
Known Windows NT exploits and fixes.
Mark Edwards's NT Security.net site has information on security issues and exploits.
A commercial Windows NT Security homepage.
SomarSoft's homepage has NT security related information.
John Savill's Windows NT FAQ at SavillTech.
Scott Schnoll's Unofficial Microsoft Internet Explorer Security FAQ.
ntbugtraq.com Describes a moderated NT security list that covers just NT related bugs.
CheckFiles performs file integrety checking.
Another NT security FAQ maintained in Sweden. Not sure how current.
non-English Security Sites
Other People's Pages
Caezar's Challenge: "I hope that the spirit of my parties lives on in this site, to the extent that this community can come together over time to solve the perplexing problems of modern network (in)security. This site is lovingly dedicated to the memory of all the livers that have been DoS'd during DefCons past. We will miss them." Caezar's Challenge is held annually at DefCon in Las Vegas. (Sept 2005)
Web Hacker: Web Hacker provides free information on hacking, computers, gaming, and more (Dec 2004)
Rootcompromise.org: find security news, book reviews, and con reviews and pictures here. Check back often to see this site learn to crawl, walk, and run
LEX's Domain: Downloads of programs created by LEX.
The Lair of Helle Chaos.
sheebeen's page. Lot's of raphics, links, etc. Warm up that v.34+ modem.
Kevin Poulson's page.
Other Security Related Resources
Ninja Palm Syndicate - Your supply of Palm Networking, Security, & Coding tools to get the job done! (29 Aug 2005)
Blacklisted!411 Forums - Hacking and Underground related forums from your favorite hacker zine. (7 Sept 2004)
Page 33: online zine includes articles and news (25 nov 2003)
Roothack.org public WarGames site Liquidmatrix news and links
Cell Phone Hacks: Mobile Phone and Providers modification discussion board.
Hack in the box: Good security news site
The Back Orifice buttplugins page at NetNinja.
CPIO Networks offers a broad range of computer security solutions, incuding various consulting services and a custom hardware security solution.
The super archive of word lists.
Phoneboy: Excellent archive of Checkpoint Firewall -1 FAQs
The CryptLib homepage.
The Dutch Security Information Network homepage.
No more CISCO password misery(tm)
How to make TEMPEST eavesdropping difficult using only software.
Pirate Radio & Alternative Media
London's Pirate Radio Home page. Daily live DJs, past recorded shows, and live chat.
Phrack Magazine's homepage, the largest computer underground 'zine.
Computer Underground Digest homepage with past CUD issues, indexes, etc.
The Basement Industry music and media hideout.
Guerrilla News: All the news thats fit to poop.
Hackerz Voice: France based hacker magazine (en français)
Blacklisted!411 Forums - Hacking and Underground related forums from your favorite hacker zine. (7 Sept 2004)
The Hackademy Journal - Magazine dedicated to technical articles about computer security and hacking
Blacklisted! 411 - Hacker magazine back in print
Private Line magazine's page by Tom Farly
2600 Magazine's Homepage
WiReDS Hotwired page
The New Hacker's Dictionary
Iron Feather Journal: Stevyn and Hanna's Hacker/Phreaker/Raver/PHUN Journal
Privacy - Crypto - Anonymity
EverCrack (GPL) Open Source Cryptanalysis Engine (Feb 2006)
Proxify: Web-based proxy service with surfer filtering support. (27 May 2004)
Need a new identity? annienonymous.com
erehwon's Strong Cryptography Links
Bruce Schenier's Counterpane Internet Security site. Excellent links!
SSH's Crypto Pages.
Speak Freely: voice encryption software.
MIT PGP Fone distribution site.
The Cypherpunks home page. These net-ninjas will not stop thwarting the man!
Quadralay Corporation's crypt page.
Bennet Yee's Security-Related Net Pointers (from CMU).
Cryptography, PGP, and Your Privacy
Home Pages of Cryptography Researchers (Kevin McCurley)
Peter Gutmann's Security and Encryption-related Resources and Links
Ron Davie's Electronic Money and Money in History
Security Resource Net
Spaf's Hotlist on Computer Security, Law, Privacy
World Wide Web Consortium Security Overview
Yahoo's Security and Encryption Page
in-security: Where you will find software applications, white papers, and exploits related to Information Technology within our archive section. Also drop by the forums to discuss your topic of interest with others. We will have daily news feeds posted also. (15 September 2005)
SecureRoot: Established security and hacking portal and directory (6 August 2004)
GhettoHackers.net DC 12 CTF organizers and Caezar's Challenge
Irvine Underground: H/P/V/A/C located in Orange County, Southern California
The Church of Wifi: You are not worthy!
twentythreedotorg: one of SoCals most active groups.
2600SLC based in Utah
Cult of the Dead C0W: cDc Communications "World domination through media saturation."
The Site of ADM "these times one of the most active underground groups in H/P"
TwistedinterneT ServiceS: Good archive of t-philes.
NWO: Hacking and Information Security.
Drunken Whores; Where liquor and mischief mix.
SmartHackers.com; The smart get smarter.
Undergroundnews.com: Dare to take the road to knowledge, power, and information.
The International Information Retrieval Guild, home of Phantasy magaine, IIRG Technical journals. IIRG has been around since 1982.
Old Warez.Com (OWC) The home for info on your favorite old games.
TNO: The New Order
The Genocide 2600 homepage. Lots of stuff, and a newly updated server.
PLA: Phone Luzers of America! Articles, phone pranks, tapes and all things telco.
SotMesc/GCMS: Puts out a newsletter and holds a conference. Check them out.
CCC: Chaos Computer Club. They have excellent information, and hold an annual Christmas convention in Germeny.
Axcess For All: (xs4all) the old HacTic crowd at it again.
Virii/Anti Virii: en Espanol
Nevada Underground: In Color
Network Punk: Security, attitude, news
Legion 2000: Back with a vengence
Hack Canada: Canada's more than just maple syrup and hockey, its got hackers too!
Legionz: Hacker group
The pHreak webhub in the Uk with informative articles on things alterna and semi-cultural.
The Ethical Hacker´s Against Pedophilia (EHAP) homepage.