Data protected,
before it reaches any model.

Liminal detects PHI, PII, PCI, and intellectual property in prompts and files in real time, protects it according to your policies, and restores redacted details in the response so the work stays useful.

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Once data reaches a model
it's out of your hands.

You have a duty to safeguard the sensitive data in your care. Once it's sent to a model, how it's stored, retained, or used is no longer up to you. Liminal protects PHI, PII, PCI, and intellectual property at the moment of use, before any prompt reaches a model, and restores redacted details in the response. Your organization can embrace AI without compromising on security.

Protected on the way in.
Restored on the way out.

Liminal automatically detects and protects sensitive data before it ever leaves your environment, then restores redacted details on return, so your people get a complete response.

Liminal chat where a charge nurse asks for a patient handoff. Patient name, MRN, insurance member ID and the wife's name and email are redacted, date of birth and home address are masked to an age range and state, and a penicillin allergy is allowed through with a warning. A side panel shows the version sent to the model, and the response returns a handoff and an update for his wife with the redacted details restored.Liminal chat where a charge nurse asks for a patient handoff. Patient name, MRN, insurance member ID and the wife's name and email are redacted, date of birth and home address are masked to an age range and state, and a penicillin allergy is allowed through with a warning. A side panel shows the version sent to the model, and the response returns a handoff and an update for his wife with the redacted details restored.

How it works

  1. 01

    Detect

    Liminal identifies PHI, PII, PCI, and intellectual property in every prompt and file, in real time.

  2. 02

    Protect

    Security policies are applied to detected data according to the granular controls you set.

  3. 03

    Rehydrate

    Redacted details are restored in the response, so the output is complete and ready to use.

Building your own AI applications? The Liminal SDK brings the same protection to them.

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Every action,
on the record.

Each detection and policy decision is logged, so security and compliance teams can see what was protected and why.

Questions from
technology leaders.

What's the difference between masking and redaction?

Redaction replaces sensitive values with consistent placeholders and restores the originals in the response. Masking generalizes a value, such as turning an exact age into an age range, and keeps it generalized. Both are set by policy.

What types of sensitive data does Liminal detect?

PHI, PII, PCI, and intellectual property, across more than two dozen built-in data types. You can also add your own terms, such as client names or trade secrets.

Does sensitive data ever reach the model?

PHI, PII, PCI, and intellectual property are protected before any prompt reaches a model, according to the policies you set.

Can we set different rules for different teams?

Yes. Policies are set by data type for each model, and each model can be assigned to the whole organization, specific teams, or individuals.

Protect
every prompt.

Tell us about your team and we'll show you how Liminal fits your environment.

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