1 Security Portal
[1] SecurityFocus
- http://securityfocus.com/
[2] NTBugTraq
- http://www.ntbugtraq.com/
[3] Beyond-Security's SecuriTeam.com
- http://www.securiteam.com/
[4] Packet Storm Security
- http://packetstormsecurity.org
[5] MS security site
- http://www.microsoft.com/security/
[6] Microsoft TechNet Security
- http://www.microsoft.com/technet/security
- http://www.microsoft.com/korea/technet/security (Korea)
[7] Hackers' Lab
- http://www.hackerslab.org
[8] Zone-H.org
- http://www.zone-h.org
- http://www.zone-h.org/en/defacements
[9] SNP (Security News Portal)
- http://www.securitynewsportal.com/index.shtml
[10] HITB (Hack In The Box)
- http://www.hackinthebox.org/
[11] EPIC (Electronic Privacy Information Center)
- public interest research center in Washington, D.C
- http://www.epic.org/
[12] GSO (Government Security Org.)
- http://www.governmentsecurity.org/
[13] Infosec Writers (The Information Security Writers group)
- http://www.infosecwriters.com/
[14] LinuxSecurity.com
- Linux and Open Source security issues
- http://www.linuxsecurity.com/
[15] windowsecurity.com
- Windows security and anti-virus isuses
- http://www.windowsecurity.com/
[16] CSN (Computer Securiry Now)
- Computer Security News for the masses
- http://www.computersecuritynow.com/
[17] DSINET (Dutch Security Information Network)
- http://www.dsinet.org/
[18] New Order
- the computer & networking security portal
- http://neworder.box.sk/
[19] UGN (UnderGround News)
- http://www.undergroundnews.com/
[20] Advanced Security Member Portal
- http://astalavista.com/
[21] Firewall.CX
- the site for Networking Professionals
- http://www.firewall.cx/
[22] Security Map (Korea)
- http://www.securitymap.net
[23] hackersnews (Korean)
- http://www.hackersnews.org

2 Vulnerability and Advisory
[1] Xfocus Team
- Provides software, information and patches relating to computer and network security
- http://www.xfocus.org/
[2] Security Focus
- http://www.securityfocus.com/bid
[3] Eeye
- http://www.eeye.coms
[4] NGS(Next Generation Security) Software
- http://www.nextgenss.com
[5] CIAC (Computer Incident Advisory Capability)
- http://www.ciac.org
[6] Secunia
- http://secunia.com/
[7] Exploits & Codes
- http://www.k-otik.net/exploits/
[8] Security Tracker
- http://www.securitytracker.com/
[9] Exploit and Exploit Interactive
- latest data : 2004.12
- http://www.exploit-lib.org/
[10] WSD (W00W00 Security Development)
- latest data : 2003.04
- http://www.w00w00.org/

3 Emergency Response
[1] CERT/CC (Computer Emergency Readiness Team/Coordination Center)
- http://cert.org/
- http://www.certcc.or.kr (Korea)
- http://www.us-cert.org (US)
- http://www.cert.org.cn/index.shtml (China)
[2] FIRST (Forum of Incident Response and Security Teams)
- http://www.first.org
[3] China National Computer Virus Emergency Response Center
- http://www.antivirus-china.org.cn/

4 Security Organization
[1] IETF (The Internet Engineering Task Force)
- large open international community of network designers, operators, vendors, and researchers
concerned with the evolution of the Internet architecture and the smooth operation of the Internet
- http://www.ietf.org/
[2] KISIA(Korea Information Security Industry Association, 한국정보보호산업협회)
- http://kisia.or.kr/
[3] 국가사이버안전센터 (Korean)
http://www.ncsc.go.kr
[4] IPA/ISEC (The Information-technology Promotion Agency/SEcurity Center)(Japanese)
- http://www.ipa.go.jp/security/index-e.html
[5] 한국 사이터테러대응센터
- http://www.ctrc.go.kr/main.jsp/
[6] 한국 사이버테러 정보전 학회
- http://kias.or.kr/
[7] Computer Crime and Intellectual Property Section (CCIPS) of the Criminal Division of the U.S. Department of Justice
- http://www.cybercrime.gov/

5 Overground/underground group
[1] defcon
- http://www.defcon.org
[2] BlackHat
- http://www.blackhat.com/main.html
[3] Wilders Security Advisors Team
- anti-virus and anti-spam issuses
- http://www.wilders.org/
[4] SFDC (Security Forums Dot Com)
- computers and computer security issues
- http://www.security-forums.com/
[5] Mission Critical Security
- Computer Security, Internet Security and Network Security Issues
- http://www.criticalsecurity.com/
[6] * WowHacker.COM
- http://www.wowhacker.com
[7] * Malware.com
- http://www.malware.com
[8] Hammer of God
- http://www.hammerofgod.com
[9] Team Sloth Forum
- http://weblog.xsdeny.net/
[10] USSR is BACK
- http://www.ussrback.com
[11] Happy Hacker
- http://www.happyhacker.org
[12] M/B Research
- http://techbroker.com
[13] Chinese Hacking Site
- http://hacker1v1.myetang.com/index1.htm
[14] KHSC (Korean)
- http://hacks.com.ne.kr

6 트래픽 모니터링
[1] DShield, SANS
- Distributed Intrusion Detection System
- http://dshield.com/
- http://www.sans.org/
- http://www.incidents.org/
- http://isc.incidents.org
[2] CAIDA (Cooperative Association for Internet Data Analysis)
- http://www.caida.org/
[3] ITR (The Internet Traffic Report)
- http://www.internettrafficreport.com/main.htm
[4] KEYNOTE's The Internet Health Report
- http://internethealthreport.com/

7 Magazine
[1] InformationWeek
- a weekly print magazine
- http://www.informationweek.com/
[2] Secure Computing Magazine
- http://www.scmagazine.com
- http://www.infosecnews.com
- http://westpubl01.uuhost.uk.uu.net (Uk Edition)
[3] Phrack
- http://www.phrack.org
[4] 2600
- The Hacker Quarterly Magazine
- http://www.2600.com/
[5] B0g
- http://www.b0g.org

8 Security Search Engine
[1] Astalavista
- The search engine for security related websites.
- http://astalavista.box.sk
[2] Secureroot
- http://www.secureroot.com
- http://www.slac.stanford.edu/xorg/nmtf/nmtf-tools.html

9 Maling List
[1] Bugtraq (archive)
http://msgs.securepoint.com/bugtraq/
[2] Full-Disclosure
- http://seclists.org/lists/fulldisclosure/