Bugtraq - Malicious Code Reports
Center for Internet Security - Malicious Code Reports
DOE-CIRC - Department of Energy Cyber Incident Response Capability
Computer Security Resource Center (CSRC) - Division of NIST
Dshield - Provides reports on the latest computer attacks
eEye - Provides security notices Federal Cybercrime - Computer crimes and Intellectual Property informationHelp Net Security - Provides security adviceInternet Storm Center - Reports the latest security issuesInternet Traffic Report - Shows the latest updates on Internet traffic Microsoft Security Bulletin
SecurityFocus
United States Computer Emergency Readiness Team (US-CERT) Security Alerts