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I think it would be expected for local access, on the device where the data was originally stored. It is wholly unacceptable for them to upload that data. If so

by f2n 9y ago

I think it would be expected for local access, on the device where the data was originally stored. It is wholly unacceptable for them to upload that data. If someone has my name and phone number and installs Facebook, they have just given Facebook all of my personal information.

codedokode 9y ago
That is how mobile messengers like Telegram work - when you install them, they upload your contact list to their servers to "improve your experience".