Occlum

About

Occlum is a control layer between employees and external AI tools such as ChatGPT. Before a prompt leaves the company, the service detects and masks sensitive content, including financial figures, personal and company names and API keys, and restores the original values in the model's reply. The company positions this as a way to let staff keep using public AI tools without exposing confidential data, while security and compliance teams retain full visibility and an audit trail of how AI is used across the organisation.