It is not specified how much data may be analysed or for how long it may be stored. Nor is it specified who is given access to the data.
All callbacks and getters return TrackInfo objects — plain data snapshots with no methods:
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По всей России сработают сирены оповещенияМЧС заявило о крупномасштабной проверке работы систем оповещения
It is very easy to catch, especially if you've never had it before.