now give a warm welcome to michael chertoff and ellen tauscher. [applause] >> good evening and welcome to the commonwealth club. i am ellen tauscher, undersecretary for arms control and international security, member of congress and member of the commonwealth club board of governors and i'm your moderator for tonight's program. it's now my pleasure to introduce tonight's guest, the honorable michael chertoff, director of security under george hw bush and author of the terrific new book excluding data: reclaiming our cyber security in the digital age. as secretary of the us department of homeland security from 2005 two 2009, michael chertoff led the country in blocking would be terrorists and before heading up the department secretary chertoff served as a federal judge in the court of appeals for the third circuit. currently as cofounder and executive chairman of the chertoff group he provides high-level strategic counsel to corporate and government leaders on a broad range of security issues. today we will discuss secretary chertoff's belief that

i'm ellen tauscher, former control of international security, i'm moderator for tonight's program.it's not my pleasure to introduce tonight's guest, the honorable michael chertoff, aughter of really terrific new book, exploding data, reclaiming our cyber security in digital age and secretary of the u.s. department of homeland from 2005 to 2009 mike led in blocking would-be terrorists, currently as cofounder and executive chairman of the chertoff provides strategic counsel to corporate and government leaders on broad range of security issues, today we will discuss secretary chertoff's belief that growth of internet made greatest threats not physical but digital. please welcome secretary chertoff. [applause] >> thank you. i want to say when i is that -- gavel, i was like wow, i haven't had a gavel since i use to bed in court. >> i used to be when nancy was the speaker and it's five times, the secret is you don't bang the gavel, you go like this. so only effective if you have the look that my mother taught me which can make lots wife turn into pillar salt. i was interested not because

without further ado please give a warm welcome to the secretary michael chertoff, and the honorable ellen tauscher plus the >> thank you. [applause] good evening and welcome to the commonwealth club. i'm the former under secretary of state for arms control and international security, member of congress and members of the commonwealth club board of governors and i am your moderator for tonight's program. it is now my pleasure to introduce tonight's guest, the honorable michael chertoff, former secretary of homeland security under george w. bush and author of the terrific new book, "exploding data reclaiming our cybersecurity in the digital age." as the secretary o secretary ofe department of homeland security from 2005 to 2009, michael chertoff led the country and blocking would-be terrorists. before heading up the department of homeland security, secretary chertoff served as the federal judge in the court of appeals for the third circuit. currently is the cofounder and executive chairman of the group, he provides high-level strategic counsel to corporate and government leaders on a broad range of