Category Archives: Surveillance

From Anonymity to Identification

The inaugural issue of the Journal of Self-Regulation and Regulation is out, and it includes an article of mine, From Anonymity to Identification. The article is adapted from a talk I gave in Heidelberg last December. I’m in good company: other authors in this issue are Markus Beckedahl, Jeanette Hofmann, Marianne Kneuer, Milton L. Mueller, Ekkehart Reimer, William Binney, Kai Cornelius, Myriam Dunn Cavelt, Sebastian Harnisch and Wolf J. Schünemann.

The full text of this open-access journal is available online, including a .pdf of From Anonymity to Identification. As Larry Solum likes to say, download it while it’s hot.

Here’s the abstract for “From Anonymity to Identification”:

This article examines whether anonymity online has a future. In the early days of the Internet, strong cryptography, anonymous remailers, and a relative lack of surveillance created an environment conducive to anonymous communication. Today, the outlook for online anonymity is poor. Several forces combine against it: ideologies that hold that anonymity is dangerous, or that identifying evil-doers is more important than ensuring a safe mechanism for unpopular speech; the profitability of identification in commerce; government surveillance; the influence of intellectual property interests and in requiring hardware and other tools that enforce identification; and the law at both national and supranational levels. As a result of these forces, online anonymity is now much more difficult than previously, and looks to become less and less possible. Nevertheless, the ability to speak truly freely remains an important ‘safety valve’ technology for the oppressed, for dissidents, and for whistle-blowers. The article argues that as data collection online merges with data collection offline, the ability to speak anonymously online will only become more valuable. Technical changes will be required if online anonymity is to remain possible. Whether these changes are possible depends on whether the public comes to appreciate and value the option of anonymous speech while it is still possible to engineer mechanisms to permit it.

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Must-See TV

John Oliver interviews Edward Snowden.

Warning: Not utterly safe for all workspaces….

Posted in Completely Different, Surveillance | Leave a comment


EFF and other fine groups announce DETEKT, a spyware detection tool. It’s a joint project with Amnesty International, Digitale Gesellschaft, and Privacy International. Read the disclaimers and instructions carefully.

Note also that they seem to be on a very short release cycle: I downloaded version 1.1 at work yesterday (nothing detected), and just downloaded version 1.3 at home today.

Disclosure: I’m a proud member of the Electronic Frontier Foundation Advisory Board.

Posted in Software, Surveillance | Leave a comment

IAB’s Major Statement on Internet Privacy

Looks like the IAB is being all Habermasian again:

IAB Statement on Internet Confidentiality

In 1996, the IAB and IESG recognized that the growth of the Internet depended on users having confidence that the network would protect their private information. RFC 1984 documented this need. Since that time, we have seen evidence that the capabilities and activities of attackers are greater and more pervasive than previously known. The IAB now believes it is important for protocol designers, developers, and operators to make encryption the norm for Internet traffic. Encryption should be authenticated where possible, but even protocols providing confidentiality without authentication are useful in the face of pervasive surveillance as described in RFC 7258.

Newly designed protocols should prefer encryption to cleartext operation. There may be exceptions to this default, but it is important to recognize that protocols do not operate in isolation. Information leaked by one protocol can be made part of a more substantial body of information by cross-correlation of traffic observation. There are protocols which may as a result require encryption on the Internet even when it would not be a requirement for that protocol operating in isolation.

We recommend that encryption be deployed throughout the protocol stack since there is not a single place within the stack where all kinds of communication can be protected.

The IAB urges protocol designers to design for confidential operation by default. We strongly encourage developers to include encryption in their implementations, and to make them encrypted by default. We similarly encourage network and service operators to deploy encryption where it is not yet deployed, and we urge firewall policy administrators to permit encrypted traffic.

We believe that each of these changes will help restore the trust users must have in the Internet. We acknowledge that this will take time and trouble, though we believe recent successes in content delivery networks, messaging, and Internet application deployments demonstrate the feasibility of this migration. We also acknowledge that many network operations activities today, from traffic management and intrusion detection to spam prevention and policy enforcement, assume access to cleartext payload. For many of these activities there are no solutions yet, but the IAB will work with those affected to foster development of new approaches for these activities which allow us to move to an Internet where traffic is confidential by default.

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Anyone Interested in Data Anonymization or Differential Privacy Should Read This

Riding with the Stars: Passenger Privacy in the NYC Taxicab:

Larry Flynt’s Hustler Club is in a fairly isolated location in Hell’s Kitchen, and no doubt experiences significant cab traffic in the early hours of the morning. I ran a query to pull out all pickups that occurred outside the club after midnight and before 6am, and mapped the drop-off coordinates to see if I could pinpoint individuals who frequented the establishment. The map below shows my results – the yellow points correspond to drop-offs that are closely clustered, implying a frequent customer.

The potential consequences of this analysis cannot be overstated. Go ahead, zoom in. You will see that the GPS coordinates are terrifyingly precise. Using this freely-obtainable, easily-created map, one can find out where many of Hustler’s customers live, as there are only a handful of locations possible for each point. Add a little local knowledge, and, well, it’s not rocket science. “I was working late at the office” no longer cuts it: Big Brother is watching.

Even without suspicions or knowledge of the neighborhood, I was able to pinpoint certain individuals with high probability.

Differential privacy — blurring the info — can work here. Note however, that for differential privacy to work, it must be applied with a very clear idea of the future uses that could be made of the data. This is often not at all easy.

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Social Cost of Fighting Face Recognition

dazzle1It’s large:

Because here is the essence of CV dazzle’s strangeness: The very thing that makes you invisible to computers makes you glaringly obvious to other humans.

via Anti-Surveillance Camouflage for Your Face – The Atlantic.

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All Comms Are Being Monitored

More evidence that the cypherpunks were right, this time in the Guardian:

Vodafone, one of the world’s largest mobile phone groups, has revealed the existence of secret wires that allow government agencies to listen to all conversations on its networks, saying they are widely used in some of the 29 countries in which it operates in Europe and beyond.

–Juliette Garside, Vodafone reveals existence of secret wires that allow state surveillance. Wires allow agencies to listen to or record live conversations, in what privacy campaigners are calling a ‘nightmare scenario’

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