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by 1vuio0pswjnm7 291 days ago
In truth, the protocols used by the companies may not be 100% proprietary

But being commercial in nature the companies are secretive about how their servers operate

For example, its is easy to submit a blob to Github Gist servers, using any software the user chooses, including something as simple as a combination of small, open source UNIX utilities

This is not the case for Signal or WhatsApp servers