Michael Chertoff (born November 28, 1953) is an American attorney who was the second United States secretary of homeland security to serve under President George W. Bush. Chertoff also served for one additional day under President Barack Obama. He was the co-author of the USA PATRIOT Act. Chertoff previously was a United States circuit judge of the United States Court of Appeals for the Third Circuit, a federal prosecutor, and Assistant U.S. Attorney General. He succeeded Tom Ridge as U.S. Secretary of Homeland Security on February 15, 2005.

- Gender
- Male
- Race
- White
Prior employment
- Secretary of Homeland Security2005–2009
U.S Department of JusticeAssistant attorney general · 2001–2003- Private practice, Newark, New Jersey1980–1983, 1994–2001
- U.S. Senate Whitewater CommitteeSpecial counsel · 1994–1996
U.S. attorney for the District of New Jersey1990–1994
District of New JerseyFirst assistant U.S. attorney · 1987–1990
Assistant U.S. attorney · 1983–1987
Law clerk , Hon. William J. Brennan · 1979–1980
Law clerk , Hon. Murray Gurfein · 1978–1979
Appointments
2003–2005 · Appointed by George W. Bush (Republican)Term ended: Resignation
Education
J.D. · 1978- Harvard CollegeA.B. · 1975