Your whole office suite, encrypted before it leaves your device.
Prismara Work gives your organisation documents, spreadsheets, presentations and file storage without handing the content to anyone, including the host. Everything is encrypted on your device and edited together in real time, and files open and save in both Microsoft Office and OpenDocument formats, so switching does not mean leaving your archive behind.
See it working
Shown with sample data.
What Prismara Work does
Geode
Personal encrypted file storage with version history and secure sharing links.
Folio
Documents with real-time co-editing, comments, suggested changes and version history.
Lattice
Spreadsheets with fast recalculation, dynamic arrays and threaded comments, compatible with Excel and LibreOffice files.
Lumen
Presentations with build animations, presenter view, and printable notes pages and handouts.
Real-time co-editing
An in-house CRDT merges edits from several people without the server ever seeing the content.
Keep your existing files
Open and save Word, Excel and PowerPoint files as well as OpenDocument, so documents move in and out without conversion projects.
Browser or desktop
Work in the browser with nothing to install, or use the desktop app with signed updates.
Works with Spaces
Team and department documents live in Prismara Spaces and open straight into Work.
How it's secured
Prismara Work follows the engineering rules shared across the suite, plus these product-specific measures.
Server can't read your files
Encryption and signing run on your device. The server stores ciphertext only.
Post-quantum key exchange
Keys are shared with a hybrid X25519 and ML-KEM-768 exchange, and connections use post-quantum TLS.
Signed edit history
Every author's edits are signed and chained, so withheld or altered edits are detected when a document reopens.
Tamper-proof app
A signed-release check refuses a modified copy of the web app, and desktop updates are signed.
Connects to the rest of the suite
Want SovSec to run it for you?
SovSec provides managed security, SOC and Microsoft 365 services for organisations in the UK and DACH region, and can run Prismara as part of that service.