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Security

Security is the foundation.

Every document encrypted. Every action logged. Every permission enforced. Every AI query fenced. Zero data retention. No exceptions.

AES-256 encryptionHash-chained audit trailZero AI data retention

Security Features

Every layer of your data is protected.

AES-256 Encryption at Rest

Every document, database record, and file is encrypted using AES-256 — the same standard used by banks and government agencies. Data cannot be read even if physical storage is compromised.

TLS 1.3 in Transit

All data transmitted between your browser and our servers is encrypted with TLS 1.3. No document, query, or response is ever transmitted in plaintext.

Row-Level Security

Access control is enforced at the database level, not the application level. Each user can only query rows they're authorized to see. This is what makes AI permission fencing possible — the database itself blocks unauthorized access.

Hash-Chained Audit Trail

Every action in the data room is logged in a hash-chained audit trail. Each entry cryptographically references the previous one, making the log tamper-proof and verifiable. Export as CSV or JSON and verify chain integrity.

Dynamic Watermarking

Every document view and PDF download includes a watermark with the viewer's name, email, timestamp, and IP address. Automatic, always-on, viewer-specific. If a document is leaked, it traces back to the source.

Zero AI Data Retention

All AI processing is stateless. Your documents are processed in memory, answers are returned, and nothing is retained. No conversations stored, no data used for model training. Ever.

Access Control

Five permission levels. Database-enforced.

Every document, every folder, every group — controlled precisely.

Granular permission model.

Sifrsys offers five permission levels, assignable per document, per folder, and per group. The AI respects every boundary.

  • None — Document is invisible to the user and AI
  • Fence — AI can retrieve from the document, but the user cannot view it directly
  • View — User can view the document in-browser (with watermark)
  • Download — User can download the document (with watermark)
  • Full — User can upload, organize, and manage documents
Permission Boundary
Accessible
Contract.pdf View
Financials.xlsx Download
Fenced
Comp Data.pdf Fence
Board Minutes.pdf None
AI retrieves from View, Download, and Fence docs — but not None

Security FAQ

Questions about our security practices.

No. Sifrsys uses a zero-retention AI architecture. Your documents, queries, and AI conversations are never used for model training. All AI processing is stateless — data is processed in memory, answers are returned, and nothing is retained. No deal information ever leaves your security boundary.
Every AI query is fenced by Row-Level Security at the database level. When a participant asks a question, the AI retrieves answers only from documents within their permission boundary. It cannot see, reference, or infer from documents outside that boundary — even if they exist in the same data room.
Yes. Each audit log entry includes a cryptographic hash of the previous entry (hash-chaining). Any modification to a past entry would break the chain, making tampering detectable. You can export the full audit trail as CSV or JSON and independently verify the chain integrity.
AES-256 encryption protects data at rest (stored documents and database records). TLS 1.3 encryption protects data in transit (between your browser and our servers). These are the same encryption standards used by banks and government agencies.
Every document view and PDF download automatically includes a watermark with the viewer's name, email, timestamp, and IP address. This is applied dynamically — there's no un-watermarked version available. If a document is leaked, the watermark traces it back to the source.

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Your documents deserve better protection.

AES-256 encryption, tamper-proof audit trail, permission-fenced AI, zero data retention.

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