Pratiques des médicaments de partage des données concernant apps et l’ecosys mobile…

Pratiques des médicaments de partage des données concernant apps et l’ecosys mobile…

Data sharing practices of medicines related apps and the mobile ecosystem: traffic, content, and network analysis

données partage des pratiques des médicaments associés apps et l’écosystème mobile : trafic, contenu et analyse de réseau


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  1. >Abstract
    >
    >**Objectives:**
    >
    >To investigate whether and how user data are shared by top rated medicines related mobile applications (apps) and to characterise privacy risks to app users, both clinicians and consumers.
    >
    >**Design**:
    >
    >Traffic, content, and network analysis.
    >
    >**Setting**:
    >
    >Top rated medicines related apps for the Android mobile platform available in the Medical store category of Google Play in the United Kingdom, United States, Canada, and Australia.
    >
    >**Participants:**
    >
    >**24 of 821 apps identified** by an app store crawling program. **Included apps pertained to medicines information, dispensing, administration, prescribing, or use, and were interactive**.
    >
    >**Data sources:**
    >
    >**24 apps downloaded to a Google Pixel 1 running Android 7.1**
    >
    >**Interventions**:
    >
    >Laboratory based traffic analysis of each app downloaded onto a smartphone, simulating real world use with four dummy scripts. The app’s **baseline traffic related to 28 different types of user data** was observed. To identify privacy leaks, one source of user data was modified and deviations in the resulting traffic observed.
    >
    >**Main outcome measures**:
    >
    >Identities and characterisation of entities directly receiving user data from sampled apps. Secondary content analysis of company websites and privacy policies identified data recipients’ main activities; network analysis characterised their data sharing relations.
    >
    >**Results:**
    >
    >**19/24 (79%) of sampled apps shared user data**. **55 unique entities, owned by 46 parent companies**, **received or processed app user data, including developers and parent companies (first parties) and service providers (third parties). 18 (33%) provided infrastructure related services such as cloud services. 37 (67%) provided services related to the collection and analysis of user data, including analytics or advertising, suggesting heightened privacy risks.** Network analysis revealed that first and third parties received a median of 3 (interquartile range 1-6, range 1-24) unique transmissions of user data. Third parties advertised the ability to **share user data with 216 “fourth parties”**; within this network (n=237), entities had access to a median of 3 (interquartile range 1-11, range 1-140) unique transmissions of user data. Several companies occupied central positions within the network with the ability to aggregate and re-identify user data.
    >
    >**Conclusions:**
    >
    >**Sharing of user data is routine, yet far from transparent.** Clinicians should be conscious of privacy risks in their own use of apps and, when recommending apps, explain the potential for loss of privacy as part of informed consent. Privacy regulation should emphasise the accountabilities of those who control and process user data. Developers should disclose all data sharing practices and allow users to choose precisely what data are shared and with whom.

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    79% of health apps on Android routinely share 28 different types of user data with over 200 « fourth parties ».

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