Last updated 13 November 2026
Privacy policy
This policy explains what personal data Fifty Eight handles, why, who helps us process it, and the rights you have. It applies to the website, the console, the API, the CLI and the MCP server.
1. Who is responsible
The controller is Arthur Dimeglio, Entrepreneur individuel (micro-entreprise), trading as Nyx Intelligence (SIREN 882 126 683), 41 route du Cap, 83230 Bormes-les-Mimosas, France. Privacy questions: contact@nyx-intelligence.com or our support form. No data protection officer is appointed. You can complain to the French data protection authority (CNIL, cnil.fr) or the authority where you live.
For content you publish and the people who interact with your accounts (commenters, people you message), you are the controller and we process that data on your behalf, under your instructions.
2. What we collect
- Account: your name, email, sign-in details and the workspaces you belong to, with your role.
- Connected social accounts: the account name, platform, language and time zone you set. The access tokens are held by our publishing provider (Zernio), not by us.
- Content: videos, images, captions and schedules you upload or create, and the published posts and their statistics.
- Voice and face: when you dub a video, your voice is analysed to produce a cloned voice in other languages, and when you choose lip sync, your face in the video is processed. This can be sensitive data: we only process it because you start the dub or lip sync yourself, which is your explicit consent, and only for your videos.
- Comments and messages: for auto-DMs, we receive comments and messages sent to your connected accounts (author name, username, text) to check your keywords and send the reply you set up.
- Billing: your plan, balance, usage and invoices. Card details are handled by Dodo Payments; we never see them.
- Support: the messages and screenshots you send us.
- Technical: server logs (IP address, requests, errors) and an audit log of actions in your workspace.
3. Why we use it, and on what basis
- Providing the service (publishing, dubbing, subtitles, lip sync, auto-DMs, best times): to perform our contract with you.
- Voice cloning and lip sync: your explicit consent, given each time you start a dub or a lip sync. You can stop at any time.
- Billing and taxes: contract and legal obligations.
- Security, abuse prevention and fixing bugs: our legitimate interest in a safe, working service.
- Product emails about your account: contract. We do not send marketing without your consent.
We do not sell your data and we do not use your content or voice to train AI models.
4. Who processes it for us
These providers process data only to run Fifty Eight for you:
| Provider | What for | Where |
|---|---|---|
| Zernio | Connecting social accounts, publishing and scheduling posts, reading comments and sending replies and DMs, post analytics | United States |
| ElevenLabs | AI dubbing and voice cloning, speech-to-text for word-timed subtitles | United States / EU |
| fal.ai (Sync Labs models) | Lip sync, only when you choose it | United States |
| Anthropic | Translating captions | United States |
| Dodo Payments | Payments, invoices and taxes, as merchant of record | United States / India |
| Neon | Sign-in and our database | EU (Frankfurt) |
| Vercel | Hosting the website and console | United States / EU |
| Hostinger (HOSTINGER, UAB) | Hosting our API server and the files it processes | [TO CONFIRM: server region] |
Each social platform you publish to (Instagram, TikTok, YouTube, LinkedIn, X, Facebook, Threads, Pinterest, Bluesky) also receives your posts under its own privacy policy.
5. International transfers
Some providers are outside the European Economic Area, mainly in the United States. When data leaves the EEA we rely on the European Commission's Standard Contractual Clauses or an adequacy decision, as offered by each provider.
6. How long we keep it
- Your account and workspace data: as long as your account exists.
- Uploaded and dubbed videos: kept by our media provider while they are needed for your posts. Working copies made during dubbing are deleted from our server as soon as each version is ready.
- Dubbing projects at ElevenLabs: kept by ElevenLabs under its own retention rules.
- Comments and messages used for auto-DMs: the record of each reply, as long as the automation exists.
- Billing records: as long as tax law requires (usually up to 10 years).
- Server logs: rotated automatically once they reach a small size, usually within days to a few weeks.
When you ask us to delete your account, we delete or anonymise the rest within 30 days.
7. Your rights
You can ask to access, correct, export or delete your personal data, to restrict or object to its use, and to withdraw consent (for example for voice cloning). To use these rights, contact support. We answer within 30 days. You can also complain to your data protection authority.
8. Security
Connections are encrypted, access to data is limited to what each part of the service needs, API keys are stored hashed, and payments go through Dodo Payments. No system is perfectly secure: if a breach affects your data, we will tell you as the law requires.
9. Children
Fifty Eight is not meant for anyone under 16, and we do not knowingly collect their data.
10. Cookies
We only use cookies needed for the service to work: your sign-in session and the workspace you last opened. We do not use advertising or analytics cookies, so there is no cookie banner.
11. Changes
If we change this policy in an important way, we will tell you by email or in the console before it applies.