Comprehensive Identity Theft Prevention Act

Comprehensive Identity Theft Prevention Act - Establishes in the Federal Trade Commission (FTC) an Office of Identity Theft. Authorizes the Office to take civil enforcement actions against covered persons that violate this Act.

Sets limits on the sale or transfer of sensitive personal information. Requires data merchants to register with the Office.

Establishes within the Office an international directorate devoted to coordinating international responses to identify theft and development of best practices to protect consumers.

Sets forth: (1) notification requirements regarding the unauthorized acquisition of, or the intention to share, an individual's sensitive personal information; and (2) penalties for violations.

Specifies prohibitions on the solicitation, display, sale, purchase, or use of, and access to, social security numbers.

Department of Homeland Security Cybersecurity Enhancement Act of 2005 - Amends the Homeland Security Act of 2002 to establish in the Directorate for Information Analysis and Infrastructure Protection of the Department of Homeland Security(DHS) a National Cybersecurity Office to assist in promoting cybersecurity for the United States. Grants the Assistant Secretary for Cybersecurity primary authority for all cybersecurity-related critical infrastructure programs of DHS, including responsibilities to establish and manage a national cybersecurity response system, a national cybersecurity threat and vulnerability reduction program, a national cybersecurity awareness and training program, a government cybersecurity program, and a national security and international cybersecurity cooperation program and primary authority over the National Communications System.

Directs the Chairman of the FTC to establish an Online Information Security Working Group to develop best practices to protect sensitive personal information stored and transferred online.