The RE-ISAC is a public-private information sharing entity between the US commercial facilities sector and the federal government. THE REAL ESTATE ISAC IS A PUBLIC-PRIVATE PARTNERSHIP BETWEEN THE U.S. REAL ESTATE INDUSTRY AND FEDERAL HOMELAND SECURITY OFFICIALS. THE PARTNERSHIP FACILITATES INFORMATION SHARING ON PHYSICAL AND CYBER THREATS, WARNINGS, INCIDENTS, VULNERABILITIES AND RESPONSE PLANNING TO COUNTER TERRORISM AND PROTECT BUILDINGS AND THE PEOPLE WHO OCCUPY AND USE THEM.