An operating system that does not read your data.
By design.
UltimaOS is built by a small team of engineers and cryptographers in the European Union. We believe privacy is not a feature you can buy — it has to be in the architecture.
Your data is yours.
The platform you trust with your most sensitive conversations and files should not be able to read them — regardless of jurisdiction, court orders, data breaches or insider threats. End-to-end encryption with no password database is the only architecture that delivers this.
We chose post-quantum cryptography because the threat model is not just "now" but "later": data intercepted today can be stored and decrypted once quantum computers become powerful enough. ML-DSA-65 and ML-KEM-768 are NIST-standardized to defend against this scenario.
- Not open source. Proprietary, protected commercial codebase.
- Not advertising-supported. No ads, no tracking, no data resale.
- Not federated. Single-operator architecture. Content is end-to-end encrypted, but the platform is hosted by UltimaOS.
- Not American, not Chinese. Built and operated in the European Union.
Talk to us.
For general questions, security disclosures, or business inquiries.