Use your data without exposing it
Privacy-preserving infrastructure for the AI era. Choose your path.
Built to run where encryption usually can’t.
Not an FHE that does everything. Just what a database actually needs, on air-gapped CPUs, today.
Standard CPUs only
No GPU or TPU cluster required. It drops straight into the air-gapped networks of banks, government, and electronics makers where GPU-based encryption can’t go.
No schema changes
Column types are preserved and no ALTER TABLE is needed. It applies instantly to existing Oracle, MSSQL, SAP HANA, PostgreSQL, and MySQL.
Real-time core DB ops
Comparison (WHERE) and aggregation (SUM) are the operations databases lean on most. They run on ciphertext in microseconds.
Proof-of-concept projects and research collaborations across finance, healthcare, the public sector, and enterprise infrastructure.
Plaintext is the weakest link.
Today's security protects networks and systems. But the moment data turns into plaintext, it's exposed. AI, cloud services, databases, and third-party apps all need data decrypted before they can use it, and that moment has become the biggest risk every enterprise faces.
AI
AI models need access to your sensitive data before they can produce any insight.
Cloud
Moving data to the cloud usually means exposing plaintext during storage, processing, or integration.
Collaboration
Every time you share data with partners or vendors, you add another chance for it to leak.
Every breach happens in the same place: the moment data is decrypted to be used.
Sure your servers are safe?
“It’s air-gapped, we’re fine” is the assumption behind most breaches. Network isolation doesn’t close the paths that actually leak — insiders, misconfigurations, timing and query side-channels. The only way to know is to test.
Free and paid assessments. Opens the diagnostic in a new tab.
Keep data encrypted.Always.
4Chains lets you use, analyze, and share sensitive data while it stays encrypted end to end. The data is never decrypted, not in transit, not at rest, not even during computation. The result is a different operating model: insight without exposure, collaboration without surrender.
Use
Run analytics directly on encrypted data, and put AI to work without exposing plaintext. Results come back encrypted, readable only by those entitled to see them.
Analyze
Power dashboards, models, and decisions on regulated datasets that used to be off-limits to your AI stack.
Share
Work across teams, partners, and organizations without ever handing over the underlying data.
Scale
And fast enough to do it for real. Computing on encrypted data used to be too slow for all but a few giants. 4Chains runs at production speed, so it scales to every enterprise, not just a privileged few.
Privacy preserving, production ready.
Computing on encrypted data has always meant unworkable overhead. 4Chains' EC-FHE removes the bootstrapping bottleneck and delivers encrypted analytics at production speed.
Measured on Ubuntu 22.04 / coincurve (single core); throughput is per-core from a 2-core end-to-end run and scales linearly. ops/s = homomorphic ops, TPS = end-to-end transactions. Drop-in for Oracle · PostgreSQL · SAP HANA · MySQL · Aurora.
Privacy that moves with your data, all the way into AI.
As your data flows into AI, it stays encrypted at every step: in your databases, in retrieval, and in the agents that act on it.
The future of data infrastructure.
Just as the data cloud redefined where data lives, 4Chains is redefining how data is used. We are building the foundational security and privacy layer for the AI era: a layer where intelligence and confidentiality are no longer in tension.
“Sensitive data should never need to be exposed.”
Use your data without exposing it.
See how 4Chains becomes the privacy-preserving infrastructure layer beneath your AI, analytics, and collaboration.