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. 2019 Mar 20;364:l920. doi: 10.1136/bmj.l920

Table 6.

Risks to privacy owing to data aggregation within fourth party network

User action in app Data transmission 3rd party recipient 4th party profile (Alphabet)
Category Content
Searches UpToDate for “rosacea” Profile nickname Joy Crashlytics (owned by Alphabet) Pseudonym: Joy (1234567890)
Device*: Google Pixel running Android 7.1 “Nougat”
Phone No*: +61 555 555 555
Last seen*: 31 January 2019 4.55 pm
Apps used: UpToDate, Pill Identifier and Drug List, Medsmart Meds & Pill Reminder App, Starbucks, Glow Period Tracker, Uber, Runtastic, eHarmony, Facebook, Whatsapp, CommBank
Mobile carrier*: Vodafone Australia
City‡: Sydney
Location*: Camperdown
Sex: Female
Age‡: 30-45
Drugs: Jurnista, Mobic, Topamax, Crestor, Lexapro
Hobbies‡: coffee, running, dating
Health conditions: fertility, chronic pain, joint pain, epilepsy, migraines, high cholesterol, depression
Android ID (unique) 1234567890
Operating System Android 7.1 “Nougat”
Device Google Pixel 1
Looks up patient’s “pain” pill in Pill Identifier and Drug List Browsing Search “red”, “round” tablet; browse Jurnista images†; browse hydromorphone controlled release uses Google Analytics (owned by Alphabet)
Last seen 1 hour ago
Operating System Android 7.1 “Nougat”
Device Google Pixel
Sets reminder for own prescriptions in Medsmart Meds & Pill Reminder App Operating System Android 7.1 “Nougat” Mixpanel (integrates with Google BigQuery, owned by Alphabet)
Device Google Pixel 1
Mobile carrier Vodafone Australia
Connection type WiFi
Drug list Drug list§: meloxicam (Mobic) 15 mg capsule daily; topiramate (Topamax) 50 mg tablet twice daily; rosuvastatin (Crestor) 10 mg tablet daily; escitalopram (Lexapro) 10 mg tablet daily
*

Information collected by Google from “apps, browsers, and devices you use to access Google services”

App user may search for or input brand or generic names; Jurnista is brand name for hydromorphone hydrochloride, used for treatment of moderate to severe pain.

Information inferred by Google on basis of aggregated data from third party sources including “apps that use Google advertising services,” “your activity on other sites and apps,” and “trusted partners, including marketing partners” per Google’s privacy policy.

§

App user in this profile was prescribed meloxicam (Mobic tablets for relief of migraine associated pain), topiramate (Topamax for treatment of migraine headaches), rosuvastatin (Crestor to lower high cholesterol), and escitalopram (Lexapro for treatment of depression).