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2026-07-09 16:51:57 +02:00

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# Security
## Secret vault
Opt-in **passphrase encryption** of the stored passwords (QRZ, cluster, eQSL,
SMTP, Icom network, etc.) using **AES-GCM + PBKDF2**.
- Enable it in Settings; you set a passphrase.
- Encrypted values are marked `enc:v1:` and are **portable** (they travel with
the `data/` folder).
- A single **unlock prompt at launch** decrypts them for the session.
If you forget the passphrase, the encrypted secrets can't be recovered — re-enter
them.
## What OpsLog sends where
- **Callsign lookups** go to QRZ.com / HamQTH with your credentials.
- **QSL uploads/downloads** go to the services you configure (LoTW via TQSL, QRZ,
eQSL, ClubLog, HRDLog).
- **Telemetry** is a once-a-day anonymous heartbeat (random install ID + version
+ OS — no callsign, no QSO data). Opt out in Preferences.
- Everything else stays local (or on your own MySQL / web server for the
multi-op live status).