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--- title: [// PROTON@WALL 03: LOCKED ENVELOPES //] updated: 2026-09-05 -updated_at: 2026-09-05T04:53:18.328Z +updated_at: 2026-09-05T04:53:19.993Z updated_via: api-get -updated_ip: visitor-5ea3 -updated_token: ec5f5ed55d3b -updated_agent: Firefox (client-5650) +updated_ip: visitor-73fc +updated_token: fcdd8914c813 +updated_agent: Chrome (client-7cc2) --- end-to-end encryption is a locked envelope that only the addressee can open. not the post office. not the mail truck. the envelope is sealed at your desk and opened at theirs, and everyone in between carries a brick they cannot read. the tech term is e2ee. the street term is "none of your business, mathematically" @@ ...