Eavesdropping Whilst You're Shopping: Balancing Personalisation and Privacy in Connected Retail Spaces

Physical retailers, who once led the way in tracking with loyalty cards and `reverse appends', now lag behind online competitors. Yet we might be seeing these tables turn, as many increasingly deploy technologies ranging from simple sensors to advanced emotion detection systems, even enabling them to tailor prices and shopping experiences on a per-customer basis. Here, we examine these in-store tracking technologies in the retail context, and evaluate them from both technical and regulatory standpoints. We first introduce the relevant technologies in context, before considering privacy impacts, the current remedies individuals might seek through technology and the law, and those remedies' limitations. To illustrate challenging tensions in this space we consider the feasibility of technical and legal approaches to both a) the recent `Go' store concept from Amazon which requires fine-grained, multi-modal tracking to function as a shop, and b) current challenges in opting in or out of increasingly pervasive passive Wi-Fi tracking. The `Go' store presents significant challenges with its legality in Europe significantly unclear and unilateral, technical measures to avoid biometric tracking likely ineffective. In the case of MAC addresses, we see a difficult-to-reconcile clash between privacy-as-confidentiality and privacy-as-control, and suggest a technical framework which might help balance the two. Significant challenges exist when seeking to balance personalisation with privacy, and researchers must work together, including across the boundaries of preferred privacy definitions, to come up with solutions that draw on both technology and the legal frameworks to provide effective and proportionate protection. Retailers, simultaneously, must ensure that their tracking is not just legal, but worthy of the trust of concerned data subjects.Comment: 10 pages, 1 figure, Proceedings of the PETRAS/IoTUK/IET Living in the Internet of Things Conference, London, United Kingdom, 28-29 March 201

Suburbanization: A Post World War II Phenomenon in the Athens Metropolitan Area, Greece

This article studies the phases of urban development in Athens, the biggest metropolitan center of the country, in combination with the development of the Greek economy during the post world war II era, by applying techniques suggested by the theory of spatial cycle. Before application, an extended reference to the theoretical background will be presented, so that a comprehensive view of the spatial cycle hypothesis is established. Ã short historical analysis of the Greek economy will also be provided, so that the impact of several historical factors on the recent evolution of Athens Metropolitan Area be better understood. Since the beginning of the post-war period, the Athens Metropolitan Area has been going through a certain phase, i.e. the phase of suburbanization. Recently (1981-2001) the afore-mentioned area has shifted from the first stage of this phase to the second, i.e. from relative to absolute decentralization, facing not only a complete loss of core city population but also memorisation, unemployment and other depressive phenomena. As differences among western, southern or northern suburbs appear, an intra-suburb analysis will be carried out in order to identify the direction of urban evolution through time. The recent decline in the development of suburbs, in juxtaposition with the rapid emergence of some independent urban areas outside the Athens Metropolitan Area, provides some evidence of potential movement towards the next phase of disurbanization in the near future.

A Touch of Evil: High-Assurance Cryptographic Hardware from Untrusted Components

The semiconductor industry is fully globalized and integrated circuits (ICs) are commonly defined, designed and fabricated in different premises across the world. This reduces production costs, but also exposes ICs to supply chain attacks, where insiders introduce malicious circuitry into the final products. Additionally, despite extensive post-fabrication testing, it is not uncommon for ICs with subtle fabrication errors to make it into production systems. While many systems may be able to tolerate a few byzantine components, this is not the case for cryptographic hardware, storing and computing on confidential data. For this reason, many error and backdoor detection techniques have been proposed over the years. So far all attempts have been either quickly circumvented, or come with unrealistically high manufacturing costs and complexity. This paper proposes Myst, a practical high-assurance architecture, that uses commercial off-the-shelf (COTS) hardware, and provides strong security guarantees, even in the presence of multiple malicious or faulty components. The key idea is to combine protective-redundancy with modern threshold cryptographic techniques to build a system tolerant to hardware trojans and errors. To evaluate our design, we build a Hardware Security Module that provides the highest level of assurance possible with COTS components. Specifically, we employ more than a hundred COTS secure crypto-coprocessors, verified to FIPS140-2 Level 4 tamper-resistance standards, and use them to realize high-confidentiality random number generation, key derivation, public key decryption and signing. Our experiments show a reasonable computational overhead (less than 1% for both Decryption and Signing) and an exponential increase in backdoor-tolerance as more ICs are added

Suburbanization: A Post World War II Phenomenon in the Athens Metropolitan Area, Greece

This article studies the phases of urban development in Athens, the biggest metropolitan center of the country, in combination with the development of the Greek economy during the post world war II era, by applying techniques suggested by the theory of spatial cycle. Before application, an extended reference to the theoretical background will be presented, so that a comprehensive view of the spatial cycle hypothesis is established. Á short historical analysis of the Greek economy will also be provided, so that the impact of several historical factors on the recent evolution of Athens Metropolitan Area be better understood. Since the beginning of the post-war period, the Athens Metropolitan Area has been going through a certain phase, i.e. the phase of suburbanization. Recently (1981-2001) the afore-mentioned area has shifted from the first stage of this phase to the second, i.e. from relative to absolute decentralization, facing not only a complete loss of core city population but also memorisation, unemployment and other depressive phenomena. As differences among western, southern or northern suburbs appear, an intra-suburb analysis will be carried out in order to identify the direction of urban evolution through time. The recent decline in the development of suburbs, in juxtaposition with the rapid emergence of some independent urban areas outside the Athens Metropolitan Area, provides some evidence of potential movement towards the next phase of disurbanization in the near future

Healthcare use for children with complex needs: using routine health data linked to a multiethnic, ongoing birth cohort.

Congenital anomaly (CA) are a leading cause of disease, death and disability for children throughout the world. Many have complex and varying healthcare needs which are not well understood. Our aim was to analyse the healthcare needs of children with CA and examine how that healthcare is delivered.Secondary analysis of observational data from the Born in Bradford study, a large prospective birth cohort, linked to primary care data and hospital episode statistics. Negative binomial regression with 95% CIs was performed to predict healthcare use. The authors conducted a subanalysis on referrals to specialists using paper medical records for a sample of 400 children.Primary, secondary and tertiary healthcare services in a large city in the north of England.All children recruited to the birth cohort between March 2007 and December 2011. A total of 706 children with CA and 10 768 without CA were included in the analyses.Healthcare use for children with and without CA aged 0 to <5 years was the primary outcome measure after adjustment for confounders.Primary care consultations, use of hospital services and referrals to specialists were higher for children with CA than those without. Children in economically deprived neighbourhoods were more likely to be admitted to hospital than consult primary care. Children with CA had a higher use of hospital services (β 1.48, 95% CI 1.36 to 1.59) than primary care consultations (β 0.24, 95% CI 1.18 to 0.30). Children with higher educated mothers were less likely to consult primary care and hospital services.Hospital services are most in demand for children with CA, but also for children who were economically deprived whether they had a CA or not. The complex nature of CA in children requires multidisciplinary management and strengthened coordination between primary and secondary care

Bounded Temporal Fairness for FIFO Financial Markets.

Financial exchange operators cater to the needs of their users while simultaneously ensuring compliance with the financial regulations. In this work, we focus on the operators’ commitment for fair treatment of all competing participants. We first discuss unbounded temporal fairness and then investigate its implementation and infrastructure requirements for exchanges. We find that these requirements can be fully met only under ideal conditions and argue that unbounded fairness in FIFO markets is unrealistic. To further support this claim, we analyse several real-world incidents and show that subtle implementation inefficiencies and technical optimizations suffice to give unfair advantages to a minority of the participants. We finally introduce, ϵ -fairness, a bounded definition of temporal fairness and discuss how it can be combined with non-continuous market designs to provide equal participant treatment with minimum divergence from the existing market operation