Artificial intelligence and machine learning technologies have in recent years become prevalent in the legal industry, transforming tasks from contract analysis to discovery to document creation. But as those machine learning models become more complex, some attorneys are wondering about the next step—how can those models we’ve built be shared with clients and others? And how can our proprietary information be secure if we do?

Kira Systems’ contract and document analysis software has long featured “smart fields,” which identifies common clauses, provisions and data points in contracts and documents. But now, the company is looking to tackle the sharing problem with a new capability called Smart Field Sharing, and it’s using a relatively new mathematical technique called differential privacy to make sure those smart fields stay safe.