Secure Messaging Apps Have Solved Encryption. The Rest Is the Problem (xpalapp.substack.com)

• E2EE is technically mature, but metadata remains exposed.
• Interoperability requirements risk weakening E2EE security.
• Device security and user experience are key remaining challenges.

"The core encryption in secure messaging apps is mature, but comprehensive communication security remains unsolved. Metadata, interoperability, and device security are persistent weaknesses. The article analyzes why focusing solely on end-to-end encryption is insufficient, discussing technical and regulatory challenges that still need addressing for true privacy and security."