Private AI for Law Firms: AI That Works Without the Risk

The privilege analysis is fact-specific and jurisdiction-dependent, but the risk is real and documented. Courts and bar ethics committees have noted that transmitting confidential client information to third-party cloud services may constitute a voluntary disclosure to a non-privileged party. When AI runs inside your firm's network, no client information leaves your control. There is no third-party transmission, and the privilege analysis does not arise.

ABA Model Rule 1.6 requires lawyers to make reasonable efforts to prevent unauthorized disclosure of client information. ABA Formal Opinion 512 (2024) on generative AI clarifies that attorneys must apply competence and confidentiality obligations to AI tool selection itself. State bar ethics opinions in California, New York, Florida, and others have reinforced this. Using cloud AI tools that transmit client data to external servers without thorough vendor evaluation and client disclosure creates professional responsibility exposure that most firms are not actively managing.

Because Lumen runs entirely inside your firm's or organization's network, work product and client matter information never leaves the protected environment. Your existing matter management and access controls govern who can query which information. The system can be configured to respect matter-level access restrictions, ensuring attorneys and staff only surface information they are permitted to access. Confidentiality walls between matters are enforced architecturally, not by policy alone.

In-house legal teams at financial services companies, healthcare organizations, and other regulated enterprises face a dual burden: their own professional responsibility obligations under applicable bar rules and their employer's sector-specific regulatory requirements. Lumen deploys inside the enterprise's existing network, inheriting both the company's IT governance controls and the legal department's matter access configurations. No client or privileged information flows to external vendors. See our Banking & Financial Services and Healthcare pages for sector-specific detail.

New business intake and conflict checking involves some of the most sensitive information a firm handles: prospective client identities, adverse parties, and matter descriptions. Processing this data through a cloud AI creates confidentiality exposure before the client relationship even begins. Lumen indexes your firm's internal conflict databases and matter management systems so intake AI workflows stay entirely within the firm's walls. The analysis runs inside your environment; nothing about the prospective engagement is transmitted externally.

Most firm and in-house deployments go live in four weeks, with full rollout in 90 days. Cognetryx includes white-glove onboarding, staff and attorney training, and 30 days of on-site support at go-live. For law firms, we also support presentations to firm leadership and IT steering committees. Timeline depends on infrastructure readiness, the scope of matter data and precedent libraries to be integrated, and the number of practice groups in the initial deployment.