Umbra Virtual-on-prem™
Umbra's mission is to make secure, reliable storage as simple as possible.
Umbra Virtual-on-prem appears like local network storage, but silently stores data across 7 cloud providers as immutable, undecryptable shadows.
You get immutable, secure, offsite storage without relying on any provider, including Umbra.


- Unrelenting access to your data.
- No reliance on adhoc backups.
- Simple cost model.

- Reduced cyber-risk.
- At least 4x harder to crack.
- Seamless backup.

Umbra reduces your carbon footprint: typically by 41%. Umbra has the potential to save approximately the same carbon emissions as all airline travel.
Compatibility
Umbra is compatible with any storage provider that implements the AWS S3 API. At present there are over 30 of these. Here is a sample:
Pick 7, depend on any 4
Changing over to Umbra only requires changing storage credentials; all the content is copied in the background. So there's no downtime. Umbra makes it easy to run the legacy storage in parallel with Umbra for complete confidence.
Find out about implementing Umbra ShadowStream.