Yesterday I posted some thoughts about Purdue University’s decision to destroy a video recording of my keynote address at its Dawn or Doom colloquium. The organizers had gone dark, and a promised public link was not forthcoming. After a couple of weeks of hoping to resolve the matter quietly, I did some digging and decided […]
Ancestry.com can use your DNA to target ads
September 7, 2015 by
With the reduction in costs of genotyping technology, genetic genealogy has become accessible to more people. Various websites such as Ancestry.com offer genetic genealogy services. Users of these services are mailed an envelope with a DNA collection kit, in which users deposit their saliva. The users then mail their kits back to the service and […]
What should we do about re-identification? A precautionary approach to big data privacy
March 19, 2015 by
Computer science research on re-identification has repeatedly demonstrated that sensitive information can be inferred even from de-identified data in a wide variety of domains. This has posed a vexing problem for practitioners and policy makers. If the absence of “personally identifying information” cannot be relied on for privacy protection, what are the alternatives? Joanna Huey, […]
We can de-anonymize programmers from coding style. What are the implications?
February 26, 2015 by
In a recent post, I talked about our paper showing how to identify anonymous programmers from their coding styles. We used a combination of lexical features (e.g., variable name choices), layout features (e.g., spacing), and syntactic features (i.e., grammatical structure of source code) to represent programmers’ coding styles. The previous post focused on the overall […]
Android WebView security and the mobile advertising marketplace
January 28, 2015 by
Freedom to Tinker readers are probably aware of the current controversy over Google’s handling of ongoing security vulnerabilities in its Android WebView component. What sounds at first like a routine security problem turns out to have some deep challenges. Let’s start by filling in some background and build up to the big problem they’re not […]
