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What Sensitive Data Should You Not Share with AI Tools?

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

What data should you not share with AI tools? SSNs, bank account numbers, home addresses, financial details, health information, and 30+ more identifiers. Justee detects them all automatically and strips them from your documents in under two minutes — free, secure, and AES-256 encrypted.

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

Never share Social Security numbers, financial account details, or government-issued IDs with AI tools without redacting them first.

Client names, deal terms, and proprietary business information create significant legal and competitive exposure risks for organizations.

Medical records, employee HR data, and insurance information all require special data protection before any AI processing.

Justee automatically detects and then replaces over thirty PII entity types using secure AES-256 encryption standards.

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.

The question of what data should not be shared with generative AI platforms has become one of the most pressing concerns for organizations across every industry. While AI tools and similar tools offer remarkable efficiency gains for document analysis, summarization, and drafting, they also create data exposure vectors that can have significant legal, financial, and reputational consequences. Federal agencies including the Federal Trade Commission have emphasized that organizations remain responsible for protecting personal information regardless of the tools they use to process it. Categories of data that carry the highest risk include personally identifiable information such as Social Security numbers and financial account details, protected health information, information subject to attorney-client privilege, trade secrets and proprietary business methodologies, and data covered by non-disclosure agreements. Automated PII redaction provides a practical safeguard that allows organizations to benefit from AI capabilities while maintaining appropriate boundaries around sensitive information.

What We Redact

Social Security numbers, driver's license numbers, and passport details automatically detected and masked

Bank account numbers, routing numbers, credit card details, and financial identifiers stripped completely

Client and patient names, contact information, and personal addresses removed across all document types

Proprietary terms, internal project codes, and trade secret references replaced with neutral placeholders

Salary figures, compensation packages, and employee performance data redacted from HR documents

Risks of Sharing Unredacted Documents

Social Security numbers uploaded to AI tools could be retained on external servers and exposed in a breach

Financial account details in uploaded documents may conflict with customer data protection agreements

Client names and deal terms in contracts could violate non-disclosure and confidentiality obligations

Employee medical information shared with AI may trigger regulatory notification requirements if exposed

Proprietary pricing models or business strategies could lose trade secret protection if shared externally

How It Works

1
Upload the Document

Drag and drop your contract, agreement, or report into Justee. Supports PDF, DOCX, and TXT formats.

2
AI Identifies Sensitive Data

Justee scans for 30+ entity types including names, financial data, SSNs, contact information, and proprietary terms.

3
Review Detections

Each entity is highlighted with its proposed semantic placeholder. Accept, adjust, or dismiss any detection.

4
Download and Share Safely

Export the clean document for use with any AI tool. Your original file is deleted immediately after processing.

Hypothetical Case Study by Justee

A marketing agency uploaded a client services agreement to AI tools to help draft a scope-of-work template for a new account. The agreement contained the client company's legal name, billing contact details, project pricing tiers, payment terms, and a non-disclosure clause restricting third-party data sharing.

Issue Found: The uploaded document included the client CFO's personal email and phone number, the agency's hourly rate structure broken down by service tier, and a clause specifically prohibiting disclosure of agreement terms to third parties.

Resolution: The agency implemented Justee redaction for all client documents before AI processing. Client names, contact details, pricing information, and NDA-protected terms are now automatically replaced with placeholders.

What Data Should You Not Share with AI Tools?

Why it matters: The client identity, billing contact details, specific rate structures, bank account information, and NDA reference date are all replaced. AI tools can still analyze the agreement structure for template generation without accessing any confidential terms.

No credit card required

If a document contains information that would be harmful in the wrong hands, it should not reach an AI platform in its original form. Redaction is the responsible default.

Artem Dolukhanyan
Artem Dolukhanyan

Partner, Corporate Transactions at Grayver Law Group

AI PII Redaction vs. Manual Redaction

FeatureJustee AI RedactionManual Redaction
Entity Types Covered30+ categories detected automaticallyLimited to reviewer's checklist
Processing TimeUnder 2 minutes per document30-90 minutes depending on complexity
Output QualitySemantic placeholders preserving contextInconsistent redaction marks
Security StandardAES-256 encryption, immediate file deletionDepends on local IT practices
Error RateAI-powered with human review stepHigher miss rate due to fatigue
* 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

FTC Business Guide to Protecting Personal Information

The FTC provides comprehensive guidance for businesses on protecting personal information, applicable to organizations sharing data with AI tools.

NIST Cybersecurity and Privacy Resources

NIST offers frameworks and best practices for managing cybersecurity and privacy risks in technology-driven environments.

OWASP Top 10 for LLM Applications

OWASP identifies the top security risks for large language model applications, including data leakage through prompt injection and training data exposure.

Related Tools

PII Redaction ToolFree Contract ReviewNDA ReviewEmployment Contract ReviewPrivacy PolicyPlans & 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

Social Security numbers, financial account details, medical records, client names from confidential agreements, employee HR data, trade secrets, and any information protected by NDAs should not be shared without redaction.

You can delete the conversation, but it is uncertain whether all data is removed from backend systems. The safest practice is to redact sensitive information before uploading.

AI tools Enterprise offers additional data controls, but documents still travel to external servers. Pre-upload redaction provides an additional layer of protection regardless of the platform tier.

Justee processes documents with AES-256 encryption and deletes all files immediately after redaction. No document copies are stored or retained.

Justee detects over 30 standard entity types. The semantic placeholder system ensures that industry-specific identifiers like medical record numbers and financial account codes are captured automatically.

Yes. Internal documents often contain employee PII, client data, and proprietary information that should not reach third-party platforms regardless of how they are classified internally.

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Last updated: May 13, 2026

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