#EU#DMA#WhatsApp#Cybersecurity#Interoperability#Encryption: "Europe’s DMA mandates that interoperability should not weaken security and privacy: “The level of security—including end-to-end encryption where applicable—that the gatekeeper provides to its own end-users shall be preserved across the interoperable services.”
This was always going to be a near impossibility. End-to-end encryption with endpoint assurance clearly only works where the two “ends” can actually be assured, which means—realistically—they are the same. Two WhatsApp or iMessage or Signal apps. DMA envisages a world where Signal messages might be sent to WhatApp users. And that so-called interoperability, by its very nature, breaks that model.
As EFF warned back in 2022, “requiring interoperability without unacceptable tradeoffs in security or privacy is a very high hurdle, one that might turn out to be insurmountable.”
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