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So I use one of the famous Herman Miller Aeron chairs in my home office. I love it primarily because the mesh seat prevents swampass , but of course overall it is a highly ergonomic chair, nicely adjustable, rugged, and holds its value well. My specific chair was made in 2000 and I bought it used on craigslist for $250 in 2009. Today exactly the 12-year warranty finally expires. About two weeks ago it suddenly broke. A thin rod broke f....
Kevin Poulsen Answers Your Questions Kevin Poulsen Kevin Poulsen is the news editor of Wired.com and author of Kingpin: How One Hacker Took Over the Billion-Dollar Cyber Crime Underground (February 2011, Crown), the story of the white hat hacker Max Vision and his turn to the dark side of the for-profit carding underground. Poulsen is a former hacker, whose best known hack involved penetrating telephone company computers in t....
Kevin Poulsen Answers Your Questions Kevin Poulsen Kevin Poulsen is the news editor of Wired.com and author of Kingpin: How One Hacker Took Over the Billion-Dollar Cyber Crime Underground (February 2011, Crown), the story of the white hat hacker Max Vision and his turn to the dark side of the for-profit carding underground. Poulsen is a former hacker, whose best known hack involved penetrating telephone company computers in t....
Kevin Poulsen Answers Your Questions Kevin Poulsen Kevin Poulsen is the news editor of Wired.com and author of Kingpin: How One Hacker Took Over the Billion-Dollar Cyber Crime Underground (February 2011, Crown), the story of the white hat hacker Max Vision and his turn to the dark side of the for-profit carding underground. Poulsen is a former hacker, whose best known hack involved penetrating telephone company computers in t....
Bruce Schneier Answers Your Questions Bruce Schneier Bruce Schneier will answer questions topics ranging from the SHA-3 competition to the TSA to trust and society to squid. Internationally renowned security technologist Bruce Schneier has authored twelve books -- most recently Liars and Outliers -- and hundreds of articles, essays, and academic papers. His influential newsletter "Crypto-Gram," and his blog "Schneier on Secur..
Bruce Schneier Answers Your Questions Bruce Schneier Bruce Schneier will answer questions topics ranging from the SHA-3 competition to the TSA to trust and society to squid. Internationally renowned security technologist Bruce Schneier has authored twelve books -- most recently Liars and Outliers -- and hundreds of articles, essays, and academic papers. His influential newsletter "Crypto-Gram," and his blog "Schneier on Secur..
Bruce Schneier Answers Your Questions Bruce Schneier Bruce Schneier will answer questions topics ranging from the SHA-3 competition to the TSA to trust and society to squid. Internationally renowned security technologist Bruce Schneier has authored twelve books -- most recently Liars and Outliers -- and hundreds of articles, essays, and academic papers. His influential newsletter "Crypto-Gram," and his blog "Schneier on Secur..
Connected Chaos: Evolving the DCG/Hackspace Communication Landscape Panelists: Blakdayz Moderator Anarchy Angel Anch Dave Marcus Nick Farr As hackers, we have access to tremendous informational power. At our individual hackerspaces and DCGs we build communities of like minded hackers that push the limits of technology. But have we gone far enough in building a global hacking community that celebrates diversity and un....
Connected Chaos: Evolving the DCG/Hackspace Communication Landscape Panelists: Blakdayz Moderator Anarchy Angel Anch Dave Marcus Nick Farr As hackers, we have access to tremendous informational power. At our individual hackerspaces and DCGs we build communities of like minded hackers that push the limits of technology. But have we gone far enough in building a global hacking community that celebrates diversity and un....
Connected Chaos: Evolving the DCG/Hackspace Communication Landscape Panelists: Blakdayz Moderator Anarchy Angel Anch Dave Marcus Nick Farr As hackers, we have access to tremendous informational power. At our individual hackerspaces and DCGs we build communities of like minded hackers that push the limits of technology. But have we gone far enough in building a global hacking community that celebrates diversity and un....
Can You Track Me Now? Government And Corporate Surveillance Of Mobile Geo-Location Data Christopher Soghoian Open Society Fellow, Open Society Foundations Ben Wizner Director, Speech, Privacy, & Technology Project, ACLU Catherine Crump Staff Attorney, Speech, Privacy, & Technology Project, ACLU Ashkan Soltani Independent Researcher & Consultant on privacy, security, and behavioral economics Our mobile phones and apps sy....
Can You Track Me Now? Government And Corporate Surveillance Of Mobile Geo-Location Data Christopher Soghoian Open Society Fellow, Open Society Foundations Ben Wizner Director, Speech, Privacy, & Technology Project, ACLU Catherine Crump Staff Attorney, Speech, Privacy, & Technology Project, ACLU Ashkan Soltani Independent Researcher & Consultant on privacy, security, and behavioral economics Our mobile phones and apps sy....
Can You Track Me Now? Government And Corporate Surveillance Of Mobile Geo-Location Data Christopher Soghoian Open Society Fellow, Open Society Foundations Ben Wizner Director, Speech, Privacy, & Technology Project, ACLU Catherine Crump Staff Attorney, Speech, Privacy, & Technology Project, ACLU Ashkan Soltani Independent Researcher & Consultant on privacy, security, and behavioral economics Our mobile phones and apps sy....
Meet the EFF Kurt Opsahl Senior Staff Attorney, Electronic Frontier Foundation Marcia Hofmann EFF Senior Staff Attorney Hanni Fakhouri EFF Staff Attorney Peter Eckersley EFF Director of Technology Projects Eva Galperin International Freedom of Expression Coordinator Trevor Timm Activist Get the latest information about how the law is racing to catch up with technological change from staffers at the Electronic Frontie....
Meet the EFF Kurt Opsahl Senior Staff Attorney, Electronic Frontier Foundation Marcia Hofmann EFF Senior Staff Attorney Hanni Fakhouri EFF Staff Attorney Peter Eckersley EFF Director of Technology Projects Eva Galperin International Freedom of Expression Coordinator Trevor Timm Activist Get the latest information about how the law is racing to catch up with technological change from staffers at the Electronic Frontie....
Meet the EFF Kurt Opsahl Senior Staff Attorney, Electronic Frontier Foundation Marcia Hofmann EFF Senior Staff Attorney Hanni Fakhouri EFF Staff Attorney Peter Eckersley EFF Director of Technology Projects Eva Galperin International Freedom of Expression Coordinator Trevor Timm Activist Get the latest information about how the law is racing to catch up with technological change from staffers at the Electronic Frontie....
The Art Of The Con Paul Wilson Real Hustler Paul Wilson is the writer and star of "The Real Hustle" and creator of "The Takedown" on Court TV and "Scammed" on The History Channel. He is one of the world's finest magicians and an expert on cons, scams, casino cheating and gambling sleight of hand. He has pulled more confidence tricks than anyone in history in his efforts to inform and protect the public. This talk will incl....
The Art Of The Con Paul Wilson Real Hustler Paul Wilson is the writer and star of "The Real Hustle" and creator of "The Takedown" on Court TV and "Scammed" on The History Channel. He is one of the world's finest magicians and an expert on cons, scams, casino cheating and gambling sleight of hand. He has pulled more confidence tricks than anyone in history in his efforts to inform and protect the public. This talk will incl....
The Art Of The Con Paul Wilson Real Hustler Paul Wilson is the writer and star of "The Real Hustle" and creator of "The Takedown" on Court TV and "Scammed" on The History Channel. He is one of the world's finest magicians and an expert on cons, scams, casino cheating and gambling sleight of hand. He has pulled more confidence tricks than anyone in history in his efforts to inform and protect the public. This talk will incl....
Q& A with the Men (and Women) in Black Priest Moderator Back at DC9 a brave MIB from the CIA received clearance and volunteered to answer any and all DC attendee's questions with no restrictions as honestly as he could. After that experience it's only taken us 10 years to get several someone's to come back and do it again! This will be your chance to meet and ask any question you want of the so called Men (and Women) in Black..
Q& A with the Men (and Women) in Black Priest Moderator Back at DC9 a brave MIB from the CIA received clearance and volunteered to answer any and all DC attendee's questions with no restrictions as honestly as he could. After that experience it's only taken us 10 years to get several someone's to come back and do it again! This will be your chance to meet and ask any question you want of the so called Men (and Women) in Black..
Q& A with the Men (and Women) in Black Priest Moderator Back at DC9 a brave MIB from the CIA received clearance and volunteered to answer any and all DC attendee's questions with no restrictions as honestly as he could. After that experience it's only taken us 10 years to get several someone's to come back and do it again! This will be your chance to meet and ask any question you want of the so called Men (and Women) in Black..
Meet the Feds 2 - Policy R&DPanelists: Jim Christy Moderator, DC3 Rich Marshall NSA Rod Beckstrom Ex-DHS Jerry Dixon Ex-DHS Mishel Kwon EX-USCERT Riley Repko VT Dr. Linton Wells NDU Mark Weatherford DHS Marcus Sachs Ex-WHS Robert E. JoyceNSA Did you ever wonder if the Feds were telling you’re the truth when you asked a question? Join current and former federal agents from numerous agencies to discuss cy....
Meet the Feds 2 - Policy R&DPanelists: Jim Christy Moderator, DC3 Rich Marshall NSA Rod Beckstrom Ex-DHS Jerry Dixon Ex-DHS Mishel Kwon EX-USCERT Riley Repko VT Dr. Linton Wells NDU Mark Weatherford DHS Marcus Sachs Ex-WHS Robert E. JoyceNSA Did you ever wonder if the Feds were telling you’re the truth when you asked a question? Join current and former federal agents from numerous agencies to discuss cy....
Meet the Feds 2 - Policy R&DPanelists: Jim Christy Moderator, DC3 Rich Marshall NSA Rod Beckstrom Ex-DHS Jerry Dixon Ex-DHS Mishel Kwon EX-USCERT Riley Repko VT Dr. Linton Wells NDU Mark Weatherford DHS Marcus Sachs Ex-WHS Robert E. JoyceNSA Did you ever wonder if the Feds were telling you’re the truth when you asked a question? Join current and former federal agents from numerous agencies to discuss cy....
Panel: Meet the Feds 1 - Law Enforcement Panelists Jim Christy Moderator, DC3 Leon Carroll Ex-NCIS Andy Fried Ex-IRS Jon Iadonisi Ex-Navy Seal Rich Marshall NSA David McCallum TV-NCIS Justin Wykes NW3C Did you ever wonder if the Feds were telling you’re the truth when you asked a question? Join current and former federal agents from numerous agencies to discuss cyber investigations and answer your burning questi....
Panel: Meet the Feds 1 - Law Enforcement Panelists Jim Christy Moderator, DC3 Leon Carroll Ex-NCIS Andy Fried Ex-IRS Jon Iadonisi Ex-Navy Seal Rich Marshall NSA David McCallum TV-NCIS Justin Wykes NW3C Did you ever wonder if the Feds were telling you’re the truth when you asked a question? Join current and former federal agents from numerous agencies to discuss cyber investigations and answer your burning questi....
Panel: Meet the Feds 1 - Law Enforcement Panelists Jim Christy Moderator, DC3 Leon Carroll Ex-NCIS Andy Fried Ex-IRS Jon Iadonisi Ex-Navy Seal Rich Marshall NSA David McCallum TV-NCIS Justin Wykes NW3C Did you ever wonder if the Feds were telling you’re the truth when you asked a question? Join current and former federal agents from numerous agencies to discuss cyber investigations and answer your burning questi....
Drones! Chris Anderson Editor-in-Chief, Wired Magazine Thanks to the plummeting cost of powerful motion sensors like those found in smartphones, the technology to create military-class autopilots is available to all. Over the past five years, the DIY Drones community has created a series of open source unmanned aerial vehicles (UAV), from fully-autonomous planes, helicopters, quadcopters, hexacopters, rovers and more, which cost ju....
Drones! Chris Anderson Editor-in-Chief, Wired Magazine Thanks to the plummeting cost of powerful motion sensors like those found in smartphones, the technology to create military-class autopilots is available to all. Over the past five years, the DIY Drones community has created a series of open source unmanned aerial vehicles (UAV), from fully-autonomous planes, helicopters, quadcopters, hexacopters, rovers and more, which cost ju....
Drones! Chris Anderson Editor-in-Chief, Wired Magazine Thanks to the plummeting cost of powerful motion sensors like those found in smartphones, the technology to create military-class autopilots is available to all. Over the past five years, the DIY Drones community has created a series of open source unmanned aerial vehicles (UAV), from fully-autonomous planes, helicopters, quadcopters, hexacopters, rovers and more, which cost ju....
Before, During, and After Gail Thackeray Former Assistant Attorney General and Special Counsel, Arizona Attorney General's Office Dead Addict When Gail Thackeray first spoke at DEF CON 1 there was no world wide web, state sponsored computer warfare was the stuff of science fiction, and international mafias had yet to become major players in computer crime.Internationally known for her role in Operation Sundevil, the former pr....
Before, During, and After Gail Thackeray Former Assistant Attorney General and Special Counsel, Arizona Attorney General's Office Dead Addict When Gail Thackeray first spoke at DEF CON 1 there was no world wide web, state sponsored computer warfare was the stuff of science fiction, and international mafias had yet to become major players in computer crime.Internationally known for her role in Operation Sundevil, the former pr....
Before, During, and After Gail Thackeray Former Assistant Attorney General and Special Counsel, Arizona Attorney General's Office Dead Addict When Gail Thackeray first spoke at DEF CON 1 there was no world wide web, state sponsored computer warfare was the stuff of science fiction, and international mafias had yet to become major players in computer crime.Internationally known for her role in Operation Sundevil, the former pr....
MongoDB Schema Design at Scale è un’eccellente articolo cu come ottimizzare database MongoDB sottoposti a pesanti carichi di lavoro, soprattutto in scrittura. Il messaggio, forte e chiaro, è sempre lo stesso: prima di agire studia per bene il tuo database engine; comprendine i vantaggi e soprattutto i punti deboli.
Problem: Prove there are infinitely many prime numbers. Solution: First recall that an arithmetic progression with difference $ d$ is a sequence of integers $ a_n \subset \mathbb{Z}$ so that for every pair $ a_k, a_{k+1}$ the difference $ a_{k+1} – a_k = d$. We proceed be defining a topology on the set of integers by defining a basis $ B$ of unbounded (in both directions) arithmetic progressions. That is, an open set in this topology is an ..
Problem: Prove there are infinitely many prime numbers. Solution: First recall that an arithmetic progression with difference $ d$ is a sequence of integers $ a_n \subset \mathbb{Z}$ so that for every pair $ a_k, a_{k+1}$ the difference $ a_{k+1} – a_k = d$. We proceed be defining a topology on the set of integers by defining a basis $ B$ of unbounded (in both directions) arithmetic progressions. That is, an open set in this topology is an ..
Problem: Prove there are infinitely many prime numbers. Solution: First recall that an arithmetic progression with difference $ d$ is a sequence of integers $ a_n \subset \mathbb{Z}$ so that for every pair $ a_k, a_{k+1}$ the difference $ a_{k+1} – a_k = d$. We proceed be defining a topology on the set of integers by defining a basis $ B$ of unbounded (in both directions) arithmetic progressions. That is, an open set in this topology is an ..
I have tried to create a simple process for debriefing workshops. This is the current process I use, and I think it may be useful for others. I give everyone sticky notes with three colors I ask everyone to write “a thing that surprised you about the workshop”, “a thing that you learned today” and “a thing that you plan to do as a result of the workshop”. Each question goes on a different color sticky note.
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