LinkedIn: Privacy, Training & Output Ownership

Sensitive Data

LinkedIn lacks the HIPAA or attorney-client privilege protections required for sensitive professional data, making it unsuitable for confidential disclosures.

Training

LinkedIn trains its generative AI models using member profile data and public contributions by default.

As of late 2025, LinkedIn uses personal data and content created on the platform—including profiles, posts, and articles—to train its generative AI models. This practice is enabled by default for most users globally, though an opt-out toggle is available in the 'Data Privacy' settings. While private messages are technically excluded from training per official policy, the platform's 'legitimate interest' processing allows broad data usage for model improvement.

Output Ownership

Users retain ownership of their posts but grant LinkedIn a comprehensive, sublicensable license to use and modify that content.

Under the User Agreement, you own the content you post, but you grant LinkedIn a non-exclusive, worldwide, transferable, and sublicensable right to use, copy, modify, distribute, publish, and process information and content that you provide through their services. This broad license extends to LinkedIn's parent company, Microsoft, and its affiliates.

Data Retention

LinkedIn retains your personal data while your account is in existence or as needed to provide you services. Even after account deletion, data may persist in logs or backups for a limited period, and specific information may be retained if necessary to comply with legal obligations, maintain security, or prevent fraud.

Security Measures

The platform employs industry-standard security measures, including encryption and multi-factor authentication. However, these measures are designed for social networking and do not meet the specialized regulatory requirements (like the 'vault doctrine') necessary for protecting legally privileged or medical information.

Your Rights & Control

Users have the right to access, rectify, or delete their personal data. They can also manage how their data is used for advertising and AI training through the 'Settings & Privacy' menu. Specifically, the 'Data for Generative AI Improvement' toggle allows users to stop future training on their content.

Special Considerations

For attorneys and medical professionals, inputting PII or confidential client/patient notes into LinkedIn's AI writing tools or messaging system is considered a disclosure to a third party. Following the 'voluntary submission' doctrine of 2026, such data likely loses its privileged status and becomes discoverable in litigation.