CERT is the standard place to start,
both the original
CERT/
at Carnegie-Mellon University and the U.S. Government's
US-CERT.
Browse their past advisories, and get on their advisory
mailing list.
InsureTrust (formerly Network Risk Management Services)
provides services in risk assessment and managment,
and offers insurance coverage for information security
threats — the first organization providing integrated
risk assessment, management, and insurance.
InsureTrust
P. O. Box 205-1000
11770 Haynes Bridge Road
Alpharetta GA 30004
+1-888-932-7475
www.insuretrust.com