ILTA survey puts Copilot at 76% while security concerns rise

On September 14, LawSites reported results from ILTA’s survey of more than 500 member firms across 12 countries and 140,000 lawyers, finding that 94% were using or exploring generative AI, up from 80% a year earlier. Microsoft 365 Copilot led reported product use at 76%, followed by CoCounsel and Claude at 44% each and Harvey at 43%; among firms with at least 700 lawyers, Harvey reached 84% and Copilot 88%. For operators, the size split suggests that enterprise distribution, integration and implementation capacity are shaping adoption at least as much as feature comparisons. The survey also ranked generative AI as the second-largest security challenge after user behavior, so vendors need permissioning, monitoring and training evidence that scales with usage.