CRCS Privacy and Security Lunch Seminar
Date: Wednesday, June 10, 2009
Time: 12:00pm-1:30 pm
Place:  Maxwell Dworkin 221

Speaker:  Frank Stajano, University of Cambridge

Title: Smart Civil Engineering Infrastructure

Abstract:  The goal of our project is to instrument bridges, tunnels and other large and long-lived civil engineering infrastructure items with sensors that can monitor their natural deterioration. In so doing, we develop an integrated system and discover that commercial offerings of wireless sensor networks are still geared towards research prototypes: they are currently not yet mature for deployment in practical application scenarios.

The contributions of this presentation fall into two categories: our engineering solutions to a variety of problems including sensor hardware, radio propagation, node deployment, system security and data visualization; and our insights into the problems that are still open when dealing with practical uses of wireless sensor networks. These problems must be addressed to enable widespread adoption of WSNs outside the research lab.

Bio: Frank Stajano is a tenured faculty member at the Computer Laboratory of the University of Cambridge. He is the author of _Security for Ubiquitous Computing_ (Wiley, 2002). His early results on authentication in ad-hoc networks (the Resurrecting Duckling) and on location privacy (the mix zones) are frequently cited. His research interests cover various aspects of systems security, ubiquitous computing, wireless communications and human factors and are driven by the goal of protecting the citizens of the electronic society. He has given over 30 invited or keynote talks in Europe, Asia and America. Before receiving academic tenure Dr Stajano spent almost 10 years in industry as a research scientist (Toshiba, AT&T, Oracle, Olivetti) and continues to consult for industry, which keeps his research focused on practical applications. He was elected a Toshiba Fellow in 2000. Outside computers he writes books about comics and he practices and teaches kendo (Japanese swordsmanship): his students have recently won first place in the 2009 national inter-university championship.“weight loss zone” Polyurethane Resins medical weight loss clinics
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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, May 13, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 2nd Floor Lounge Area

Speaker: Bradley Malin

Title: A Systems Approach to Data Privacy in the Biomedical Domain

Abstract: The healthcare community has made considerable strides in the development and deployment of information systems, with particular gains in electronic health records and cheap genome sequencing technologies. Given the recent passage of the American Recovery and Reinvestment Act of 2009, and the HITECH Act in particular, advancement and adoption of such systems is expected to grow at unprecedented rates. The quantity of patient-level data that will be generated is substantial and can enable more cost-effective care as well as support a host of secondary uses, such biomedical research and biosurveillance. At the same time, care must be taken to ensure that such records are accessed and shared without violating a patient’s privacy rights.

The construction and application of data privacy technologies in the biomedical domain is a complex endeavor and requires the resolution of often competing computational, organizational, regulatory, and scientific needs. In this talk, I will introduce how the Vanderbilt Health Information Privacy Laboratory builds and applies data privacy solutions to support various biomedical settings. Our solutions are rooted in computational formalisms, but are driven by real world requirements and, as such, draw upon various tools and techniques from a number of fields, including cryptography, databases and data mining, public policy, risk analysis, and statistics. Beyond a high-level overview, I will delve into recent research on how we are measuring and mitigating privacy risks when sharing patient-level data from electronic medical and genomic records from the Vanderbilt University Medical Center to local researchers and an emerging de-identified repository at the National Institutes of Health.

Bio: Brad Malin is an Assistant Professor of Biomedical Informatics in the School of Medicine and an Assistant Professor of Computer Science in the School of Engineering at Vanderbilt University. He is the founder and director of the Vanderbilt Health Information Privacy Laboratory (HIPLab), which focuses on basic and applied research in a number of health-related areas, including primary care and secondary sharing of patient-specific clinical and genomic data. His research has received several awards of distinction from the American and International Medical Informatics Associations and the HIPLab is currently supported by grant funding from the National Science Foundation, National Institutes of Health, and Veterans Health Administration. For the past several years, he has directed a data privacy research and consultation team for the Electronic Medical Records and Genomics (eMERGE) project, a consortium sponsored by the National Human Genome Research Institute. He has served as a program committee member and workshop chair for numerous conferences on data mining, privacy, and medical informatics. He has also edited several volumes for Springer Lecture Notes in Computer Science, a special issue for the journal Data and Knowledge Engineering, and is currently on the editorial board of the journal Transactions on Data Privacy. He received a bachelor’s in biology (2000), master’s in knowledge discovery and data mining (2002), master’s in public policy & management (2003), and a doctorate in computation, organizations & society (2006) from the School of Computer Science at Carnegie Mellon University.

His home on the web can be found at http://www.hiplab.org/people/malin

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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, May 6, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 119

Speaker: Annie Anton

Title: Designing Software Systems that Comply with Privacy Laws

Abstract: Properly protecting information is in all our best interests, but it is a complex undertaking. The fact that regulation is often written by non-technologists, introduces additional challenges and obstacles. Moreover, those who design systems that collect, store, and maintain sensitive information have an obligation to design systems holistically within this broader context of regulatory and legal compliance.

There are questions that should be asked when developing new requirements for information systems. For example ….. How do we build systems to handle data that must be kept secure and private when relevant regulations tie your hands? When building a system that maintains health or financial records for a large number of people, what do we need to do to protect the information against theft and abuse, keep the information private, AND at the same time, satisfy all governing privacy laws and restrictions? Moreover, how do we know that we’ve satisfied those laws? How do we monitor for compliance while ensuring that we’re monitoring the right things? And, how do you accomplish all this in a way that can be expressed clearly to end-users and legislators (or auditors) so they can be confident you are doing the right things?

We’ve been working on technologies to make these tasks simpler, and in some senses, automatic. In this talk, I will describe some of the research that we have been conducting to address these problems. I will also discuss the results of a survey involving 975 Internet users in which we compared various ways to represent privacy management information to online healthcare consumers. The results of this work and our other studies pose interesting ethical questions for industry and society at large, and help illustrate the complexity of the problems.

Bio: Dr. Annie I. Antón is a Professor of Computer Science in the College of Engineering at the North Carolina State University. She received her Ph.D. in Computer Science from the College of Computing at the Georgia Institute of Technology. Dr. Antón joined the computer science department at NC State in 1998. From 2005-2006 she was a visiting faculty (sabbatical) scholar at Purdue University’s CERIAS.

She was awarded an NSF CAREER Award in 2000, named a CRA Digital Government Fellow in 2002, nominated and selected for the 2004-2005 IDA/DARPA Defense Science Study Group, and received the CSO (Chief Security Officer) Magazine “Woman of Influence in the Public Sector” award at the 2005 Executive Women’s Forum. This July she was named one of the most influential women in technology and government by The Political Voices of Women blog. In 2006 she was honored with an award for “Most Influential Paper of ICRE 1996” at RE’06 for her 1996 paper entitled “Goal-Based Requirements Analysis”. She is a former associate editor of IEEE Transactions on Software Engineering, and currently the cognitive issues area editor for the Requirements Engineering Journal and a member of the International Board of Referees for Computers & Security. Antón is a member of the International Association of Privacy Professionals, a senior member of the IEEE as well as a member of the ACM U.S. Public Policy Executive Committee and co-chair of the USACM Privacy Sub-committee.

Antón currently serves on various boards: the NSF Computer & Information Science & Engineering Directorate Advisory Council, the DHS Data Privacy and Integrity Advisory Committee, the CRA Board of Directors, an Intel Corporation Advisory Board, the Distinguished External Advisory Board for the TRUST Research Center, the Advisory Board for the Electronic Privacy Information Center in Washington, DC, and the Georgia Tech Alumni Association Board of Trustees. She is a former member of the Microsoft Research University Relations Faculty Advisory Board, the CRA-W, and the Georgia Tech Advisory Board (GTAB). Dr. Antón is director of ThePrivacyPlace.Org (http://theprivacyplace.org). Her URL is: http://www.csc.ncsu.edu/faculty/anton/.

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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, April 29, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 119

Speaker: Guy Rothblum

Title: On the Complexity of Differentially Private Data Release: Efficient Algorithms and Hardness Results

Abstract: We consider private data analysis in the setting in which a trusted and trustworthy curator, having obtained a data set containing sensitive information, releases to the public a “sanitization” of the data set. The goal is for the sanitization to both protect the privacy of the individual contributors of data and offer aggregate statistical utility to a data analyst.

In a remarkable recent result, Blum et al. [STOC '08] showed that it is theoretically possible (in exponential time) to generate a synthetic data-set that allows rich statistical analysis, while ensuring a strong privacy guarantee known as differential privacy.

We investigate the possibility of *efficiently* achieving rich statistical data analysis that protects the privacy of individuals. The main result we will present is the first efficient mechanism that achieves rich general privacy-preserving data analysis by answering large sets of predicate counting queries. We will also show strong lower bounds based on standard cryptographic hardness assumptions.

Joint work with Cynthia Dwork, Moni Naor, Omer Reingold and Salil Vadhan.

Bio: Guy Rothblum is a Ph.D. candidate at MIT. His research focuses on foundational cryptography. Recently he is especially interested in studying methods for protecting individual’s privacy, for reliably delegating computations and for obfuscation and software protection.

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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, April 22, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 119

Speaker: Stefan Savage

Title: Spamalytics: Exploring the Technical and Economic
Underpinnings of Bulk E-mail Scams

Abstract:   When asked why he robbed banks, Willie Sutton famously responded, “Because that’s where the money is”.  Today, the same sentiment is widely applied to the Internet as well.  The tremendous growth of on-line commerce has made Internet users, their computers and their data a valuable target for criminal actors.  However, in spite of the fact that virtually all on-line crime is economically motivated, the underlying economics are poorly understood and even more poorly quantified.  In this talk I will explore this issue in the context of spam-based advertising, a business whose “return-on- investment” depends both on delivery technology and consumer appetites.  While the security community has traditionally focused on the former issue, producing an arms race between spammer and anti- spammer, the the other half of the spam value proposition is the “conversion rate” — the probability that an unsolicited e-mail will ultimately elicit a “sale”.  In this talk, I will describe a methodology for using parasitic botnet infiltration to empirically infer the delivery and conversion rates of spam campaigns.  I will present a preliminary analysis of over 400 million instrumented spam e-mails across two campaigns and quantify the underlying processes that modulate profits.

Bio: Stefan Savage is an associate professor of Computer Science and Engineering at the University of California, San Diego. He received his Ph.D. in Computer Science and Engineering from the University of Washington and a B.S. in Applied History from Carnegie-Mellon University.  Savage’s research interests lie at the intersection of operating systems, networking and computer security and he currently serves as director of the Cooperative Center for Internet Epidemiology and Defenses (CCIED), a joint effort between UCSD and the International Computer Science Institute.  Savage is a fairly down-to-earth guy and only writes about himself in the third person when asked.

CRCS Privacy and Security Lunch Seminar
Date: Wednesday, April 15, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 119

Speaker: Mike Collins

Title: Its The Hackers’ World, and We Just Live Here: The Pragmatics of Network Defense

Abstract: In 2002, several colleagues and I wanted to get a couple weeks of network traffic traces in order to study user behaviors in react to public holidays. That research effort led to the CENTAUR capability, used by the DoD to monitor its internal networks to this day.

Intrusion detection systems historically have relied on an implicit
assumption that attacks are rare and targeted specifically at
high-value targets. In this talk, I intend to discuss how those
assumptions hold up against the data collected from watching a very large network for the past five years over 150 million+ IP addresses.

On the whole, the results are not heartening: several protocols have been effectively abandoned due to worm traffic, and anomaly detection technology is drowned in a constant flood of garbage data and failed attacks. The constant stream of garbage traffic and the ease with which new attacks are injected into the system bring up serious questions about the viability of endpoint defenses. Conversely, evidence exists to suggest that bad actors appear persistently in specific locations, the most notable recent example being the McColo
shutdown.

In my talk, I will discuss the impact of attacks on the training, use and application of anomaly detection mechanisms, as well as the potential impact of shutdowns and takedowns. The question we now face is whether we want to aggressively shut and take down hostile actors - how to develop judgments for doing so, and whether this is a path we want to take.

We never did figure out how users react to public holidays.

Bio:
Michael Collins is the chief scientist for RedJack, LLC., a Network
Security and Data Analysis company located in the Washington
D.C. area. Prior to his work at RedJack, Dr. Collins was a member of the technical staff at the CERT/Network Situational Awareness group at Carnegie Mellon University. His primary focus is on network instrumentation and traffic analysis, in particular on the analysis of large datasets and the impact of distributed attacks on Internet infrastructure.

Dr. Collins graduated with a PhD in Electrical Engineering from
Carnegie Mellon Univeristy in 2008, he holds Master’s and Bachelor’s Degrees from the same institution. In his spare time, he enjoys talking about himself in the third person. calorie diet loss weight Making Resin Jewelry weight loss god’s way
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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, April 8, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 2nd Floor Lounge Area

Speakers : Stuart Schechter (Microsoft)  and Serge Egelman (CMU)

Title:   Paying people to buy vibrators and lie to their spouse’s friends. Two short talks on the latest social science results in online security and privacy

Abstract:   Many commerce websites post privacy policies to address Internet shoppers’ privacy concerns, but few users read or understand them.

Serge Egelman will present the results of a laboratory study in which researchers asked users to purchase items — some highly privacy-sensitive – to determine whether the timing and placement of online privacy indicators impacted browsing and purchasing decisions.

We’ll then change topics from privacy to authentication.  When a user forgets the password to an online account, she can use a backup authentication mechanism to regain access—or at least try.  The most popular backup authentication mechanisms in use today – alternate email addresses and ’secret’ questions – are too likely to reject legitimate account holders or are susceptible to guessing by imposters.  Stuart Schechter will introduce a new backup authentication mechanism, describe the methodology used to test its reliability and security against social engineering attacks, and present results.

Bios:

Serge Egelman is a PhD student within Carnegie Mellon’s School of Computer Science and a member of the CyLab Usable Privacy and Security Laboratory.  Serge is primarily interested in improving user interactions with security software.  To give some examples, he has worked on designing intuitive online security warnings, accessible privacy policies, and safer authentication systems.  Serge’s hobbiesinclude graduating and applying for jobs.

Stuart Schechter is a man of few accomplishments and so, the reluctant reader should be pleased to hear, his biography is correspondingly short.  Stuart has worked on systems security, security economics, and has spent the last few years developing and applying new methodologies for measuring users’ security behavior.  Since joining Microsoft Research, Stuart has focused on building and measuring the efficacy of new mechanisms for backup authentication and on projects that simplify and streamline permissioning.  Stuart received his B.S. from Ohio State, Ph.D. from Harvard’s School of Engineering and Applied Sciences, and previously worked at MIT Lincoln Laboratory.  While in Cambridge, Stuart spent nine years as a Resident Tutor in Leverett House.

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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, April 1, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 119

Speaker: Katie Shilton

Title:  Participating in Privacy: Enabling Disclosure and Discretion in Mobile Sensing

Abstract: Mobile sensing harnesses mobile phone capabilities, such as location awareness, image capture, motion sensitivity, and user input, to create a platform for individual discovery and community exploration. Transforming mobile phones into ubiquitous systems for data capture and analysis poses challenges both technical and social. Among these challenges is empowering users to understand and control their data as they sense and share information at unprecedented granularity and scale.

At the Center for Embedded Networked Sensing, we are developing the Personal Data Stream (PDS) architecture. The architecture positions participants as the central decision-makers in mobile sensing. To enable and encourage participant decisions about data collection and sharing, our project proposes three design principles for the PDS architecture: participant primacy, longitudinal engagement, and legibility of data. Making this architecture successful requires three complementary social structures: vigorous public discussion and debate, transparency of data analysis services, and a legal privilege for raw location data. I demonstrate how the resulting sensing infrastructure can increase personal control over, and engagement with, data using an example of a mobile sensing application, the Personal Environmental Impact Report (PEIR).

Bio: Katie Shilton is a doctoral student in Information Studies in the Graduate School of Education & Information Studies at the University of California, Los Angeles. She coordinates a project with the Center for Embedded Networked Sensing (CENS) exploring and responding to privacy and ethical challenges raised by ubiquitous sensing technologies. Before joining CENS, Katie worked on privacy research with faculty in UCLA’s Department of Information Studies. She received a B.A. from Oberlin College in 2003 and a Masters of Library and Information Science from UCLA in 2007. Her work is supported by a grant from the NSF Ethics Education in Science and Engineering program (IIS-0832873).

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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, March 18, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 119

Speaker: Paul Ohm

Title: The Probability Of Privacy

Abstract: Nearly every data privacy regulation separates information into two categories: sensitive and non-sensitive. Often, the rules dole out special treatment for those who transform sensitive into non-sensitive information through anonymization—the elimination of personal identifiers like names and social security numbers. For example, to satisfy regulators, Google anonymizes data in its search query database after nine months and health researchers aggregate statistics before publishing them.

Two recent, newsworthy events have upended our understanding of the privacy-protecting power of anonymization. America Online and Netflix each released millions of anonymized records containing the secrets of hundreds of thousands of users. In both cases, to the surprise of all, researchers were able to “deanonymize” or “reidentify” some of the people in the data with ease.

In part by studying these events, Computer Scientists have recently taken giant strides in developing theories of anonymization and reidentification. Through this research, none of which has been rigorously imported into legal scholarship until now, they have concluded that the utility and anonymity of data are connected. The only way to anonymize a database perfectly is to strip all of the information from it, and any database which is useful is also imperfectly anonymous. This profoundly important result will do no less than reshape every privacy law and regulation and revolutionize every privacy-related policy debate.

Bio: Paul Ohm joined the faculty of the University of Colorado Law School in 2006. He specializes in computer crime law, information privacy, criminal procedure, and intellectual property.

Prior to joining Colorado Law he worked for the U.S. Department of Justice’s Computer Crime and Intellectual Property Section as an Honors Program trial attorney. Professor Ohm is a former law clerk to Judge Betty Fletcher of the U.S. Ninth Circuit Court of Appeals and Judge Mariana Pfaelzer of the U.S. District Court for the Central District of California. He attended the UCLA Law School where he served as Articles Editor of the UCLA Law Review and received the Benjamin Aaron and Judge Jerry Pacht prizes. Prior to law school, he worked for several years as a computer programmer and network systems administrator, and before that he earned undergraduate degrees in computer science and electrical engineering.

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CRCS Privacy and Security Lunch Seminar
Date: Wednesday, March 11, 2009
Time: 12:00pm-1:30 pm
Place: Maxwell Dworkin 2nd Floor Lounge Area

Speaker: Scott Dynes, Dartmouth

Title: Information Security and Critical Infrastructure Resiliency: Results From Field Studies

Abstract: It’s no surprise that some firms are better at managing information risk than other firms. What is a surprise is that firms that should do well don’t. This talk will present field studies of information risk management (IRM) efforts at a hospital, within and across members of the retail grocer food supply network, and other firms. Issues to be discussed in the context of the results include the internal motivation for pursuing IRM efforts, the potential societal impact from doing poorly, and why some firms seem to be better at IRM than others.

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