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A comment on Large-Scale Abuse of Contact Discovery in Mobile Messengers [pdf]. Parent comment

Re:Large-Scale Abuse of Contact Discovery in Mobile Messenge... by mercutio2 on Monday April 19, 2021 @11:57AM (#26864226)
If they’re Apple devices, why don’t you just use iMessage?
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Re:Large-Scale Abuse of Contact Discovery in Mobile Messenge... by Forbo on Monday April 19, 2021 @02:00PM (#26865981)
This is purely speculation into their motivations on my part, but it might have to do with Apple backing up encryption keys to iCloud.
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