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A comment on Jan Koum to leave after broad clashes with Facebook. Parent comment

Re:Jan Koum to leave after broad clashes with Facebook by testvox on Monday April 30, 2018 @06:57PM (#16963226)
Neither of those costs anything extra to run though. Since it's end to end encrypted with no sever backups the images and video can be communicated directly between the clients, WhatsApp just plays matchmaker.
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Re:Jan Koum to leave after broad clashes with Facebook by icebraining on Tuesday May 01, 2018 @04:30AM (#16965396)
It could, but that's not how it does, they store the (encrypted) media in their servers so that both phones don't need to be online at the same time, and also to avoid having to upload multiple times when you send to a group.

That said, they shouldn't need to keep them around for that long, unlike FB and similar.

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