Decentralized messengers shift security beyond encryption by reducing metadata, limiting data requests and preparing for post-quantum threats.
Encrypted messengers are having a second wave.
Apps like WhatsApp, iMessage and Signal made end-to-end encryption (E2EE) a default expectation. But most still hinge on phone numbers, centralized servers and a lot of metadata, such as who you talk to, when, from which IP and on which device.
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