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How to Protect Your Sensitive Data When Using AI Tools

Backed by Microsoft For Startups
Guided by Grayver Law Group
AES-256 Encryption
Free during early access

How to protect sensitive data when using AI is the defining question for modern professionals. AI tools, and AI assistants can transform how your team works, but they also create new data exposure risks. The most effective protection is simple: strip personally identifiable information before any document reaches an AI platform. Justee automates this process in under two minutes.

Free and no sign-up required.

Upload your document for PII Redaction

Drop a file here or click to browse

Supports PDF, DOCX

Uploaded files are deleted immediately after processing

No one has access to the files you upload

Key Takeaways

Pre-upload PII redaction is the single most effective measure to protect sensitive data when using AI.

Organizations should establish clear internal policies defining which specific document types require redaction before any AI use.

Semantic placeholders effectively preserve document structure and context for AI analysis without exposing any confidential information.

Justee processes all documents with AES-256 encryption and deletes files immediately after redaction is done.

Under 2 minutes*

Average Redaction Time

30+ types

PII Entity Types Detected

AES-256 Encryption

Document Security

* Estimates based on typical documents. Actual results vary by document size and complexity.

Protecting sensitive data while leveraging AI productivity tools requires a layered approach that combines technical safeguards with organizational policies. The most critical layer is preventing sensitive data from reaching external platforms in the first place. The National Institute of Standards and Technology recommends that organizations evaluate data flows and implement appropriate controls before integrating AI tools into business processes. The Federal Trade Commission has reinforced that businesses bear responsibility for protecting personal information regardless of the technologies they employ. Practical implementation begins with identifying which documents contain personally identifiable information, establishing redaction workflows as standard operating procedure, and selecting tools that automate the detection and replacement of sensitive entities. When implemented correctly, automated PII redaction allows organizations to capture the full productivity benefits of generative AI while maintaining meaningful control over confidential data and meeting their obligations to clients, employees, and regulatory frameworks.

What We Redact

Full names, email addresses, phone numbers, and physical addresses detected and replaced across all files

Social Security numbers, tax IDs, and government-issued identification numbers automatically masked

Bank account details, routing numbers, and financial transaction data stripped before AI processing

Proprietary business terms, project code names, and internal identifiers replaced with neutral labels

Medical records, insurance IDs, and health-related data scrubbed from documents before external sharing

Risks of Sharing Unredacted Documents

AI platforms may store uploaded content on external servers with retention policies outside your control

Unredacted financial data could be exposed through platform breaches or unauthorized model training

Employee personal information in HR documents may create regulatory liability if shared with AI tools

Client confidential data in uploaded contracts could violate professional duty and NDA obligations

Trade secrets and proprietary methodologies may lose legal protections once shared with third-party systems

How It Works

1
Upload Your Document

Drop your file into Justee before sending it to any AI platform. We support PDF, DOCX, and TXT formats.

2
Automatic Entity Detection

Justee's AI engine identifies over 30 types of sensitive data, from personal names to financial figures and proprietary codes.

3
Review and Adjust

Examine each detection, confirm the semantic placeholder, and make any adjustments before finalizing the redaction.

4
Export for Safe AI Use

Download the redacted document and share it with AI tools, or any AI tool. Original files are deleted immediately.

Hypothetical Case Study by Justee

A product management team at a SaaS company used AI tools to analyze user research transcripts and generate feature prioritization reports. The research transcripts contained user names, company affiliations, job titles, specific product usage metrics, and candid feedback about competitor platforms.

Issue Found: A product manager uploaded unredacted transcripts that included a Fortune 500 client's internal workflow details, the contact information of their VP of Engineering, and specific revenue impact figures shared under NDA during user interviews.

Resolution: The product team adopted Justee redaction as a standard step before any AI-assisted analysis. All user names, company identifiers, contact details, and NDA-protected information are now automatically stripped from transcripts before processing.

User Research Transcript: Before vs. After Redaction

Why it matters: The participant's identity, company, email, interview date, and specific financial metrics are all replaced with semantic placeholders. AI tools can still analyze the feedback themes and prioritize features without exposing any confidential participant data.

No credit card required

Data protection when using AI is not a one-time decision. It is a workflow habit. The organizations that build redaction into their process from day one avoid the problems that others only discover after a breach.

Artem Dolukhanyan
Artem Dolukhanyan

Partner, Corporate Transactions at Grayver Law Group

AI PII Redaction vs. Manual Redaction

FeatureJustee AI RedactionManual Redaction
Setup TimeNo setup required, instant useRequires training and checklists
Detection Scope30+ entity types across all formatsLimited to reviewer expertise
Processing SpeedUnder 2 minutes per document30-60+ minutes per document
Data SecurityAES-256 encryption, files deleted after useUnredacted copies may persist
Team ConsistencyIdentical quality across all usersResults vary by individual
* Comparison data represents estimates based on internal testing for typical document types. Redaction times and detection coverage vary by document complexity, length, and content type.

Official Privacy & Data Protection Resources

NIST AI Risk Management Framework

NIST provides comprehensive guidance for organizations on managing risks associated with AI systems, including data privacy and security considerations.

CISA Secure by Design Principles

CISA outlines principles for building and using technology securely, relevant to organizations integrating AI tools into their document workflows.

ENISA AI Threat Landscape Report

The European Union Agency for Cybersecurity provides analysis of AI-related threats, including risks of data exposure when sharing documents with generative AI platforms.

Related Tools

PII Redaction ToolFree Contract ReviewContract ComparisonEmployment Contract ReviewPlans & PricingPrivacy FAQ
Important Legal Disclaimer

Not Legal Advice: The information and analysis provided by Justee AI is for general informational purposes only and does not constitute legal advice. While we strive to provide accurate and helpful information, our AI-powered service is not a substitute for professional legal counsel.

No Attorney-Client Relationship: Use of Justee AI does not create an attorney-client relationship. Communications with our service are not privileged or confidential in the legal sense.

Consult a Professional: For specific legal matters, we strongly recommend consulting with a qualified attorney licensed in your jurisdiction. Legal requirements vary by location and circumstances, and only a licensed attorney can provide advice tailored to your specific situation.

Performance Estimates (*): All statistics, metrics, and numerical claims on this page — including review times, cost comparisons, accuracy percentages, and database size — are estimates based on internal testing, industry research, and typical use cases. Actual results vary based on document type, complexity, length, jurisdiction, and other factors. Cost comparisons reference publicly available average attorney rates and are not guaranteed savings. "1M+ laws and regulations" refers to the breadth of Justee's reference database and does not imply that every provision is checked against every law for every document.

By using our service, you acknowledge that you have read and agree to our Terms of Use and understand the limitations of AI-powered legal analysis. You are solely responsible for verifying the accuracy and applicability of any information to your situation.

Frequently Asked Questions

The most effective approach is to redact personally identifiable information from documents before uploading them to any AI platform. This prevents sensitive data from ever reaching external servers.

Any AI tool that processes documents on external servers, including any major AI service, can pose data privacy risks if sensitive information is uploaded without redaction.

Start by identifying which document types contain PII, require pre-upload redaction for all sensitive files, choose an automated redaction tool, and train your team on the workflow.

Yes. Justee produces redacted documents that work with any AI platform. It functions as a pre-processing step that is platform-agnostic.

Justee detects over 30 entity types including names, SSNs, financial accounts, email addresses, phone numbers, medical identifiers, dates of birth, and proprietary business terms.

Yes. Justee offers free redaction with no sign-up required. Simply upload your document, review the detections, and download the redacted version.

Justee uses AES-256 encryption during processing and deletes all files immediately after redaction is complete. No copies of your documents are retained.

Automated redaction detects more entity types more consistently than manual review. Every detection is also surfaced for human confirmation, combining AI speed with human oversight.

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Last updated: May 13, 2026

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