Privacy

Privacy Issues Strike Street View (Again)

/ Christopher Parsons / 5 Comments

Google Street View has come under fire again, this time for collecting wireless router information and some packets of data whilst wandering the globe and collecting pictures of our streets. It looks like the German authorities, in particular, may come down hard of Google though I’m at odds about the ‘calibre’ of the privacy violation – router information is fair game as far as I’m concerned, though data packets are a little dicier. But before I dig into that, let me outline what’s actually gone on.

Last Friday, Google announced that they had been inadvertently collecting some data packets sent via unencrypted wireless access points for the past three years. This admission came after the Street View program (again) came under criticism from German data protection authorities following Google’s (original, and earlier) admission that they had only been collecting information about wireless routers as they drove their cars around towns. Specifically, the original admission saw Google reveal they had collected the SSID and MAC addresses of routers. In layman’s terms, the SSID is the name of the wireless network that is usually given to the device during configuration processes following the installation of the device (e.g. Apartment 312, Pablo14, or any of the other names that are shown when you scan for wireless networks from your computer). The MAC address a unique number that is associated with each piece of Internet networking equipment; your wireless card in your computer, your LAN card, your router, and your iPhone all have unique numbers. After collecting both the SSID and MAC address of a wireless router the company identified the physical location of the device using a GPS system.

Google collects information about wireless networks and (almost more importantly) their physical location to provide a wifi-based geolocation system. Once they know where wireless routers are, and plot them on a map, you don’t need GPS to plan and trace a route through a city because a wireless card and low-powered computer will suffice. There are claims that this constitutes a privacy infringement, insofar as the correlation of SSID, MAC address, and physical location of the router constitute personal information. I’m not sure that I agree with this, as the Google service stands now.

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Twitter, Mobile Browsers, and Metadata Privacy

/ Christopher Parsons

If you spend much time working with computers then you’re likely familiar with metadata, or data about data. In the digital era metadata is relied upon for many of the tagging and categorization systems that are seen in popular web environments, such as Twitter, Digg, Delicious, Facebook, and so forth, and is more generally used to define, structure, and administrate data across all digital environments. I should state, upfront, that metadata is incredibly valuable: nothing that I’m going to write about should leave you with the suggestion that metadata should be removed from the digital landscape or could be removed. Instead I’m advocating for a responsible use of metadata.

In this post I will be drawing on a pair of examples to underscore just how much data is contained in popular metadata structures: the information divulged every time a person tweets on Twitter, and what your mobile phone operator may be giving up to third-parties when you browse the web on your phone. In the latter case, especially, we see that metadata is not just important for routing data traffic but also responsible for disclosing a considerable amount of personal information. I’ll conclude by noting, once again, that our privacy regulators, commissioners, advocates, and researchers need to additional funding if citizens are to have those parties regularly identify ‘bad’ metadata practices and seek rapid remedies before the data ends up being datamined for illicit or unjustifiable reasons.

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Deep Packet Inspection Canada

/ Christopher Parsons

Last week my advisor, Dr. Colin Bennett, and I launched a new website that is meant to provide Canadians with information about how their Internet Service Provider (ISP) monitors data traffic and manages their network. This website, Deep Packet Inspection Canada, aggregates information that has been disclosed on the public record about how the technology is used, why, and what uses of it are seen as ‘off limits’ by ISPs. The research has been funded through the Office of the Privacy Commissioner of Canada’s contributions program.

Deep packet inspection is a technology that facilitates a heightened awareness of what is flowing across ISP networks. It has the ability to determine the protocols responsible for shuttling information to and from the Internet, the applications that are used in transmitting the data, and (in test conditions) can even extract elements of data from the application layer of the data traffic in real time and compare it against other packet signatures to block particular data flows based on the content being accessed. Additionally, the technology can be used to modify packet flows using the technology – something done by Rogers – but it should be noted that DPI is not presently used to prevent Canadians from accessing particular content on the web, nor is it stopping them from using P2P services to download copywritten works.

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Choosing Winners with Deep Packet Inspection

/ Christopher Parsons

I see a lot of the network neutrality discussion as one surrounding the conditions under which applications can, and cannot, be prevented from running. On one hand there are advocates who maintain that telecommunications providers – ISPs such as Bell, Comcast, and Virgin – shouldn’t be responsible for ‘picking winners and losers’ on the basis that consumers should make these choices. On the other hand, advocates for managed (read: functioning) networks insist that network operators have a duty and responsibility to fairly provision their networks in a way that doesn’t see one small group negatively impact the experiences of the larger consumer population. Deep Packet Inspection (DPI) has become a hot-button technology in light of the neutrality debates, given its potential to let ISPs determine what applications function ‘properly’ and which see their data rates delayed for purposes of network management. What is often missing in the network neutrality discussions is a comparison between the uses of DPI across jurisdictions and how these uses might impact ISPs’ abilities to prioritize or deprioritize particular forms of data traffic.

As part of an early bit of thinking on this, I want to direct our attention to Canada, the United States, and the United Kingdom to start framing how these jurisdictions are approaching the use of DPI. In the process, I will make the claim that Canada’s recent CRTC ruling on the use of the technology appears to be more and more progressive in light of recent decisions in the US and the likelihood of the UK’s Digital Economy Bill (DEB) becoming law. Up front I should note that while I think that Canada can be read as ‘progressive’ on the network neutrality front, this shouldn’t suggest that either the CRTC or parliament have done enough: further clarity into the practices of ISPs, additional insight into the technologies they use, and an ongoing discussion of traffic management systems are needed in Canada. Canadian communications increasingly pass through IP networks and as a result our communications infrastructure should be seen as important as defence, education, and health care, each of which are tied to their own critical infrastructures but connected to one another and enabled through digital communications systems. Digital infrastructures draw together the fibres connecting the Canadian people, Canadian business, and Canadian security, and we need to elevate the discussions about this infrastructure to make it a prominent part of the national agenda.

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Draft – Deep Packet Inspection: Privacy, Mash-ups, and Dignities

/ Christopher Parsons

This is a draft of the paper that I’ll be presenting at the Counter: Piracy and Counterfeit conference in Manchester in a few days. It’s still rough around some edges, but feels like a substantial piece. Comments, as always, are welcome.

Abstract:

Privacy operates as an umbrella-like concept that shelters liberal citizens’ capacity to enjoy the autonomy, secrecy, and liberty, values that are key to citizens enjoying their psychic and civil dignity. As digitisation sweeps through the post-industrial information economy, these same citizens are increasingly sharing and disseminating copywritten files using peer-to-peer file sharing networks. In the face of economic challenges posed by these networks, some members of the recording industries have sought agreements with Internet Service Providers (ISPs) to govern the sharing of copywritten data. In Britain, file-sharing governance has recently manifested in the form of Virgin Media inserting deep packet inspection (DPI) appliances into their network to monitor for levels of infringing files. In this presentation, I argue that ISPs and vendors must demonstrate technical and social transparency over their use of DPI to assuage worries that communications providers are endangering citizens’ psychic and civil dignities. Drawing on recent Canadian regulatory processes concerning Canadian applications of DPI, I suggest that transparency between civil advocacy groups and ISPs and vendors can garner trust required to limit harms to citizens’ psychic dignity. Further, I maintain that using DPI appliances to detect copyright infringement and apply three-strikes proposals unduly threatens citizens’ civil dignities; alternate governance strategies must be adopted to preserve citizens’ civil dignity.

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IPv6 and the Future of Privacy

/ Christopher Parsons / 5 Comments

There is an increasing urgency to transition to a new infrastructure for addressing space on the Internet, and in this space all individuals and their devices could be uniquely identifiable by their Internet Protocol (IP) address(es). It is in light of this surveillant future that France’s recent ruling that IP addresses are not personally identifiable information is so serious. Further, it is with this longer temporal viewpoint (i.e. not just the here and now) that has more generally worried technologists about governmental rulings concerning binary ‘yes/no IP addresses are private information’.

Before I go any further, let me break down what an IP address is, the distinctions between versions 4 (IPv4) and 6 (IPv6), and then get to the heart of the privacy-related issues concerning the transition to IPv6. The technical infrastructure of the ‘net tends to be seen as dreadfully boring but, as is evidenced by the (possible) computer failures of Toyota vehicles, what goes on ‘under the hood’ of the ‘net is of critical importance to understand and think about. It’s my hope that you’ll browse away with concerns and thoughts about the future of privacy in an increasingly connected biodigital world.

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