AI Defense Stack

GenAI data-leak prevention & privacy

Skyflow: data privacy vault with LLM data protection

Skyflow is a data privacy vault with LLM data protection from Skyflow. It is a commercial product offered as: SaaS, API. Pricing model: not published.

  • Last reviewed
Visit Skyflow (opens in a new tab) Documentation (opens in a new tab)
Commercial Layer 5: Data protection

Best for

Teams that already want a vault to hold regulated data and need tokenized or de-identified values to feed LLMs and RAG

Consider instead if

  • You only need PII detection and masking in your own code, with no separate vault service. See Presidio.

What Skyflow does

Skyflow is a commercial data privacy vault. Sensitive values are stored in a vault that is segregated from other infrastructure and reached only through privileged access, and applications work with tokens instead. For AI use, the docs say it prevents sensitive data from leaking into models, prompts and RAG systems, and describe a Detect API that finds PII in text, audio, images and files and redacts or tokenizes it. Re-identification is controlled by roles, so the original value can be restored only for permitted users. It is API-first and closed source. The pricing page shows no prices, only a demo request, so cost has to be confirmed with the vendor.

This summary is our own wording of the sourced facts on this page.

Key facts

Each value links to the page that states it, with the date we checked it.

Vendor
Skyflow Source, checked October 21, 2026: skyflow.com (opens in a new tab)
Status
Active Source, checked October 21, 2026: docs.skyflow.com (opens in a new tab)
Open source
No: closed source (proprietary) Source, checked October 21, 2026: skyflow.com (opens in a new tab)
Latest release
Not documented in the sources we checked
Deployment
SaaS, API Source, checked October 21, 2026: docs.skyflow.com (opens in a new tab)
Pricing model
Not published in the sources we checked Source, checked October 21, 2026: skyflow.com (opens in a new tab)
Website
skyflow.com Source, checked October 21, 2026: skyflow.com (opens in a new tab)
Documentation
docs.skyflow.com Source, checked October 21, 2026: docs.skyflow.com (opens in a new tab)
API reference
docs.skyflow.com Source, checked October 21, 2026: docs.skyflow.com (opens in a new tab)
Quickstart
docs.skyflow.com Source, checked October 21, 2026: docs.skyflow.com (opens in a new tab)
Security page
skyflow.com Source, checked October 21, 2026: skyflow.com (opens in a new tab)
Attestations or disclosure
ISO 27001:2022 Certified; SOC 2 Type II Certified; PCI DSS Level 1 Certified; GDPR Assessed and Compliant; HIPAA Assessed and Eligible Source, checked October 21, 2026: skyflow.com (opens in a new tab)

Capabilities

As documented by the vendor or project. The tag is our label from a controlled vocabulary.

Where Skyflow fits in our AI security layers

Our analysis

Our editorial model, not a standard. The primary layer follows the category, except for tools whose main documented job is detection and response; other layers rest on a capability the sources document. How the model works.

AI security layers that Skyflow covers, with the role, how each applies and what it rests on
LayerRoleHow it appliesBased on
L5 Data Data protection Primary Keep sensitive data out of prompts, uploads, retrieval and training data, or remove and tokenize it first. Follows its category, GenAI data-leak prevention & privacy

OWASP LLM Top 10 mapping

Our analysis

The risk list is OWASP's (Top 10 for LLM Applications, 2025). The mapping is our analysis, and each row rests on a capability the sources document.

OWASP LLM risks mapped to Skyflow, with the capabilities each mapping rests on
RiskHow it appliesBased on
LLM02 Sensitive Information Disclosure Keeps sensitive values in a vault, de-identifies detected PII and states that it prevents sensitive data from leaking into models and prompts. Stores sensitive data in a data privacy vault that is segregated from your other infrastructure and reachable only through privileged access; Replaces sensitive values with vault tokens, including format-preserving tokens; Finds PII in text, audio, images and files using the Detect API; Redacts or masks detected entities and lets roles decide who sees masked, redacted or plaintext values; States that it prevents sensitive data from leaking into models, prompts, RAG systems, tools, traces and agent workflows

Not mapped in our analysis: LLM07, LLM08. These are risks we expect tools in this category to cover; the sources we checked do not document a matching capability.

Alternatives and related tools

More in GenAI data-leak prevention & privacy, ranked within the category by Coverage Score.

Protecto

Protecto

Commercial
  • SaaS
  • On-prem
  • API

Detects sensitive data and tokenizes or masks it before it reaches LLMs, RAG pipelines and agents.

Best for: Teams that want an API that tokenizes or masks sensitive data before it reaches LLMs and RAG pipelines and restores it afterwards

Coverage Score 70 out of 100
  • LLM02 Sensitive Information Disclosure
  • LLM08 Vector and Embedding Weaknesses

Reviewed

Presidio

Data Privacy Stack

Open sourceMIT
  • Library
  • Self-hosted

Finds and masks personal data in text, images and structured data, and you run it yourself.

Best for: Engineering teams that want a free, self-hosted library to detect and anonymize PII before text reaches a model or a log

Coverage Score 67 out of 100
  • LLM02 Sensitive Information Disclosure

Reviewed

Limina (Private AI)

Limina

Commercial Freemium Now Limina
  • Self-hosted
  • On-prem
  • API

Detects PII, PHI and PCI in text, files, images and audio in a container you run in your own environment.

Best for: Teams that need PII, PHI and PCI de-identification of text, files and audio that runs inside their own VPC or on-premises

Coverage Score 64 out of 100
  • LLM02 Sensitive Information Disclosure

Reviewed

Skyflow FAQ

Is Skyflow open source?

No. Skyflow is a commercial platform, and we found no public source repository for the vault product.

How much does Skyflow cost?

The vendor's pricing page states no prices or plans and offers a demo request, so pricing is not published.

What can the Detect API handle?

The docs say it handles text, CSV, DOC and PPT files, PDF, audio and images, with more than 60 entity types and more than 40 languages.

Key facts you can cite

We have no commercial relationship with Skyflow.

Sources & last reviewed

Last reviewed . We compile from the vendors' own public pages and repositories and we do not run the products. Source links open in a new tab. Found a mistake? Report a correction.