The researcher linked to the paper (https://haystack.mobi/papers/preinstalledAndroidSW_preprint.pdf https://haystack.mobi/papers/preinstalledAndroidSW_preprint.

The researcher linked to the paper (https://haystack.mobi/papers/preinstalledAndroidSW_preprint.pdf https://haystack.mobi/papers/preinstalledAndroidSW_preprint....) in their original blog post on Appcensus (https://blog.appcensus.io/2021/04/27/why-google-should-stop-logging-contact-tracing-data/ https://blog.appcensus.io/2021/04/27/why-google-should-stop-...)