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Sharvi Sawant

Is Perplexity Safe for Lawyers? A Complete Client Data

Is Perplexity Safe for Lawyers? A Complete Client Data

Learn about Perplexity AI’s privacy policies, data training practices, confidentiality risks, and safeguards lawyers should consider before using it.

Lawyers face a tough challenge when using AI tools like Perplexity. These tools promise faster research and drafting, but what about client confidentiality? If you share sensitive client details with an AI assistant, you need to know how that data is handled. This guide breaks down the privacy risks and explains how lawyers can protect client data while using AI.

TL;DR

  • Perplexity offers different plans with varying data privacy and training policies.

  • Additionally, data from free and standard users can be utilized to enhance AI models, provided they have not opted out.

  • For enterprise clients, privacy controls are more stringent, and data is not used for training by default.

  • It is advisable for lawyers to refrain from inputting privileged or confidential client information into AI tools unless appropriate safeguards are in place.

  • Transparency with clients about AI use is essential to maintain professional ethics.

  • Legal AI software built for lawyers offers better privacy and compliance features.

What Data Does Perplexity Collect and How Is It Used?

Perplexity collects several types of data from users. Additionally, this includes personal information like your name, email, and payment details when you sign up or pay for a subscription. It also gathers the text you input, the system’s responses, device details, and usage patterns. The goal is to improve the service and provide relevant answers.

The platform processes your inputs to generate responses. For free and standard users, the data you provide may be stored temporarily and used to train and improve the AI model. Your queries and their context might be reviewed and analyzed by the system to enhance overall model performance over time.

Enterprise plans offer a different approach. They exclude user data from model training by default. This helps protect sensitive information from being used beyond the immediate session. Enterprise customers also have the ability to enforce data retention policies and control who accesses the data.

Perplexity encrypts data both in transit and at rest. Your information is scrambled when sent over the internet and when stored on servers. Encryption is a basic security measure but does not fully address concerns about data usage or long-term storage.

Even with encryption, the platform still collects and retains data for some time. The exact retention period depends on the plan and user settings. Users can request deletion or correction of personal data under privacy laws like GDPR. However, deleting data may not erase all copies or backups immediately.

For lawyers, this raises important questions. Is it safe to enter client details or case facts into Perplexity? Could this data be stored or used in ways that violate confidentiality? Understanding the data lifecycle and privacy settings is critical before using such tools for legal work.

Related articles: Your Enterprise Legal AI Assistant in 2026 | Lawxy

How Does Perplexity’s Privacy Model Affect Lawyers?

Lawyers must comply with strict ethical rules to protect client information. Additionally, the American Bar Association’s confidentiality Rule 1.6 mandates that lawyers take all necessary measures to prevent the unauthorized disclosure of client confidences. Using AI tools introduces new risks because the data often leaves the lawyer’s direct control.

Perplexity’s privacy model offers some protections but also limitations. Inputs submitted by free and standard users are automatically aggregated into the training datasets. This process means that client information could become part of the material used to enhance the AI’s functionality. Moreover, even if users opt out, there is no assurance that data collected previously will be removed.

Enterprise users get stronger controls. Their data is excluded from training unless explicitly allowed. They can also set retention policies and audit access. Still, the data passes through Perplexity’s cloud servers, which means the lawyer must trust the provider’s security and compliance.

From a legal ethics perspective, using Perplexity without safeguards could risk waiving attorney-client privilege. If client data is stored or shared beyond the lawyer-client relationship, courts might view confidentiality as compromised. This could affect the admissibility of evidence or expose lawyers to malpractice claims.

Lawyers should treat Perplexity like a public cloud service. Unless there is a contract with confidentiality clauses and audit controls, sensitive client information should not be entered. Instead, lawyers should anonymize data or use generic examples when testing or researching with the AI.

The duty to inform clients also applies. According to ABA Rule 1.4 on client communications, lawyers must disclose the risks associated with AI tools and secure informed consent. This means updating engagement letters or retainer agreements to include AI use disclosures. Transparency helps manage expectations and reduce liability.

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What Are the Differences Between Perplexity Plans and Privacy?

Perplexity offers several plans with different privacy and data use policies. Additionally, a clear grasp of these distinctions enables lawyers to select the most suitable option for their specific requirements.

Plan Type

Data Used for Training?

Data Retention Controls

Best Use Case

Free & Standard

Yes, by default unless opted out

Limited, temporary chat retention

Personal use, research, non-confidential queries

API

Inputs have not been incorporated into training since 2023

Options for complete data retention elimination

Developers creating highly secure applications, highest privacy needs

Enterprise/Teams

Data is excluded from training by default

Contractual retention policies, admin controls

Sensitive legal work, corporate use, compliance-focused

Free and standard users must actively opt out of training data use. The opt-out is not automatic, so many users unknowingly contribute data to improve the AI. This can expose confidential information if lawyers enter client details.

The API plan ensures the utmost privacy by excluding both input and output information from model refinement processes. It also offers configurations that eliminate data retention entirely. This plan suits software engineers developing highly secure legal applications that demand rigorous data governance.

Enterprise plans provide the strongest privacy and governance features. Organizations can prevent inclusion of their data in model training, enforce data retention policies, and control access through admin tools. These plans also support compliance with regulations like GDPR and SOC 2.

Lawyers handling sensitive client matters should avoid free or standard plans for legal work. Instead, they should use enterprise-grade solutions or secure API integrations that guarantee no data use beyond immediate processing.

Related articles: Legal AI Assistant For Case Intelligence

What Are the Risks to Attorney-Client Privilege When Using AI Tools?

Attorney-client privilege safeguards confidential communications between attorneys and their clients. Additionally, this protection encourages clients to disclose information fully, confident that it will not be revealed. Using AI tools like Perplexity introduces risks that could undermine this privilege.

A significant concern arises when client information entered into AI systems is potentially stored or disseminated without adequate protective measures. In scenarios where data contributes to ongoing model training or remains stored indefinitely, unauthorized access becomes a tangible threat. Such exposure runs counter to the confidentiality obligations outlined in ABA Model Rule 1.6.

Even if Perplexity encrypts data, that measure alone cannot ensure the protection of privileged information. The information remains hosted on third-party servers beyond the lawyer’s direct control. Moreover, without clear confidentiality agreements, the attorney cannot guarantee that the data remains secure.

Another risk is inadvertent disclosure. Lawyers might accidentally input sensitive client details when asking the AI for help. If the AI retains this data or disseminates it to other users, it risks waiving the privilege.

Courts have yet to provide definitive guidance on how AI interactions impact attorney-client confidentiality. Legal ethics authorities caution that attorneys must exercise prudence. Lawyers should refrain from submitting privileged information into publicly accessible or semi-public AI platforms.

To mitigate risks, lawyers should:

  • Avoid sharing client names, case numbers, or specific facts in AI queries.

  • When evaluating AI tools, it is advisable to use anonymized or hypothetical scenarios.

  • Obtaining informed consent from clients before employing AI in legal work is essential.

  • Opt for AI platforms that offer stringent privacy protections coupled with enforceable confidentiality agreements.

  • Maintain ongoing human oversight and rigorously evaluate AI outputs prior to their application.

Failing to take these steps could expose lawyers to malpractice claims or disciplinary action for breaching confidentiality.

Related articles: How to Review Hundreds of Contracts Quickly Using AI

How Can Lawyers Protect Client Data When Using AI?

Safeguarding client information in the context of AI deployment demands a combination of both technical measures and procedural protocols. Additionally, lawyers should exercise the same level of vigilance with AI platforms as they do with any cloud-based service managing confidential data.

Here are practical steps lawyers can take:

  1. Limit Data Input: Only enter information necessary for the task. Avoid including client names, addresses, or specific case details. Use generic or redacted data when possible.

  2. Choose the Right Plan: Use AI plans that exclude data from training and offer data retention controls. Enterprise or API plans usually provide better privacy.

  3. Review Privacy Policies: Understand how the AI provider collects, stores, and uses data. Confirm encryption methods and compliance certifications.

  4. Obtain Client Consent: Update engagement letters to disclose AI use and explain potential risks. Moreover, get explicit consent for using AI tools in the matter.

  5. Anonymize Data: Remove or mask identifying information before inputting data into AI tools.

  6. Maintain Human Oversight: Always review AI-generated outputs carefully. Do not rely solely on AI without professional judgment.

  7. Use Confidentiality Agreements: When feasible, incorporate clauses on confidentiality and data protection in contracts with AI providers.

  8. Train Legal Teams: Provide comprehensive training to attorneys and support staff regarding AI vulnerabilities and optimal data security protocols.

  9. Monitor Data Retention: Regularly check and manage data retention settings to minimize stored information.

  10. Use Specialized Legal AI: Prefer AI tools designed specifically for legal workflows with built-in privacy and compliance features.

By implementing these measures, legal professionals can mitigate risks associated with client data exposure while leveraging the advantages offered by AI technologies.

General AI tools such as Perplexity were not developed with the specific requirements of legal practice in mind. Additionally, they frequently fall short in safeguarding attorney-client privilege and ensuring adherence to regulatory standards. Legal AI software designed for law firms and corporate legal teams offers stronger privacy and security.

Legal AI platforms commonly incorporate several critical features:

  • Data Isolation: Client data is segregated and never used for model training.

  • Retention Controls: Administrators have the ability to implement automated deletion protocols and impose access restrictions on data.

  • Confidentiality Agreements: Providers commit to legally enforceable agreements that mandate strict compliance with professional ethical standards.

  • Audit Logs: Detailed records of all data access are preserved to support both regulatory compliance and internal governance.

  • Human-in-the-Loop: AI serves as an assistive technology, ensuring that all substantive legal judgments remain under the exclusive control of licensed attorneys.

  • Integration with Secure Systems: These platforms are designed to operate seamlessly within established secure document management and collaboration infrastructures.

Such capabilities are essential for legal practitioners to uphold their ethical duties and maintain the confidentiality of client information.

AI software built for legal teams helps manage risks while improving efficiency. Additionally, these solutions integrate sophisticated AI capabilities with robust enterprise-level security and governance frameworks. They allow lawyers to automate routine tasks, draft and review contracts, and conduct research without exposing client data.

Such platforms centralize legal workflows in one secure environment. They provide structured workflows, playbooks, and compliance checks that reduce errors and maintain consistency. Legal teams can scale their work without increasing headcount or risking data breaches.

For example, AI contract review features highlight risky clauses and suggest edits based on firm policies. Legal research modules provide citation-backed answers without exposing queries to external servers. Document intelligence tools extract obligations and deadlines while keeping data in-house.

These capabilities help legal teams deliver faster, more accurate work while safeguarding client confidentiality.

Managing complex legal workflows requires a centralized and intelligent solution.

> Want to see how AI can simplify legal work? Explore Lawxy Legal AI Software.

FAQ

Additionally, lawyers should refrain from inputting confidential client information into Perplexity unless they are subscribed to enterprise plans that enforce rigorous privacy protections. Even with these measures, caution is essential to avoid inadvertent waiver of privilege.

Does Perplexity store client data permanently?

Retention policies depend on the subscription tier. Data submitted via basic or standard accounts might be stored briefly and leveraged to improve model accuracy. Clients on enterprise plans can adjust retention configurations to limit data storage.

Moreover, can lawyers opt out of Perplexity using their data for AI training?

Moreover, is it possible for lawyers to prevent Perplexity from utilizing their data for AI training purposes?

Yes, users on the free and standard tiers have the option to disable data usage for training via their account settings.

Yes, clients holding basic or standard subscriptions may deactivate data use for training within their account settings. However, previously collected data might still be retained. Data associated with enterprise subscriptions is excluded from training by default.

Enterprise plans exclude data from training by default.

What should lawyers do to protect attorney-client privilege when using AI?

Furthermore, to safeguard privilege, lawyers should avoid sharing identifiable client information, anonymize all inputs, secure informed consent from clients, and employ AI tools that incorporate robust privacy and confidentiality safeguards.

Yes, dedicated legal AI platforms tailored for law firms provide superior privacy measures, compliance assistance, and governance capabilities designed to integrate seamlessly with legal operational requirements.

Does using AI tools require updating client engagement letters?

Yes, lawyers should include disclosures about AI utilization and its associated risks in engagement letters to promote transparency and comply with ethical obligations.

How does encryption protect data in AI tools?

Also, encryption protects data by encoding it during transmission and storage, thereby preventing unauthorized access. Nonetheless, encryption does not govern data usage policies or retention durations.

Can AI tools waive attorney-client privilege?

If client information is stored or transmitted without adequate safeguards, there is a risk of privilege waiver. Lawyers must exercise careful judgment when employing AI to mitigate this possibility.

What are the benefits of enterprise AI plans for lawyers?

Enterprise subscriptions prevent data from being integrated into model training by default, provide administrative controls, maintain audit trails, and comply with privacy regulations, collectively enhancing the protection of sensitive legal information.

Implement policies limiting data input, train staff, use secure AI platforms, obtain client consent, and maintain oversight of AI-generated outputs.

LAWXY

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Copyright© 2026 Lawxy AI. All Rights Reserved.

Secure by design. Built for enterprise.

More About Security

Lawxy AI is designed with encrypted infrastructure, access controls, audit visibility, and enterprise-grade security standards.

SOC 2 Type I, II

GDPR

ISO 27001

VAPT Tested

LAWXY

Legal Intelligence Layer Businesses Rely On

Copyright© 2026 Lawxy AI. All Rights Reserved.

Secure by design. Built for enterprise.

More About Security

Lawxy AI is designed with encrypted infrastructure, access controls, audit visibility, and enterprise-grade security standards.

SOC 2 Type I, II

GDPR

ISO 27001

VAPT Tested

LAWXY

Legal Intelligence Layer Businesses Rely On

Copyright© 2026 Lawxy AI. All Rights Reserved.

Secure by design. Built for enterprise.

More About Security

Lawxy AI is designed with encrypted infrastructure, access controls, audit visibility, and enterprise-grade security standards.

SOC 2 Type I, II

GDPR

ISO 27001

VAPT Tested