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Privacy Policy (LGPD/GDPR)

_Binding text (EN)_: 2026-09-11.2 · updated: 2026-09-09

Jurisdiction: LGPD (Lei 13.709/2018); GDPR for EU users

1. Who is the controller

For the OFFICIAL SITE (blind courier + TURN): the maintainers of the official site, contactable through the in-app abuse channel (Settings → Help). For FULL-NODES: the administrator of that server is the controller of the data it holds; the software only implements what the host runs.

2. Legal bases

Contract performance (delivering the service you asked for) + legitimate interest (security/anti-abuse) + consent (accepting the Terms and enabling optional features such as uploads).

3. What we do NOT collect (minimisation statement)

4. What IS processed, and by whom

5. Data subject rights (art. 18 LGPD / arts. 15-22 GDPR)

Confirmation, access, rectification, portability, deletion and consent withdrawal are exercised LOCALLY: export your identity in the app (portability) and delete it (deletion on your device); in courier mode envelopes expire by themselves. For the official site, since data is only hashes and sealed bytes, it cannot be linked to you, and deletion is baked into the architecture. For full-nodes, contact the host administrator.

6. Security

Ed25519 signatures on every mutation with anti-replay nonces; ECIES (X25519 + XChaCha20-Poly1305 + BLAKE3 KDF); short-lived HMAC TURN credentials; shape-only validation without content reads; strict CSP; ICE candidate sanitisation against IP leaks (mDNS/relay). The full audit is published at legal/security.html on the official site.

7. International transfers and subprocessors

The official site may be hosted on cloud outside Brazil; the only data processed there are opaque envelopes and hashes, without any decryption key. Self-hosted TURN is optional; we never use third-party clouds for content.

8. Minors

The service is for adults (18+). We do not intentionally collect minors' data; there is no age verification.

9. Changes

Substantial changes require fresh in-app acceptance. Current version: above and in the Legal Center screen.


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