Security considerations or testing errors? Microsoft briefly restricted employee access to OpenAI's ChatGPT. Since the end of last year, OpenAI has achieved great success with its heavyweight chatbot product ChatGPT, and the biggest investor behind this startup is Microsoft. But according to media reports, Microsoft employees were banned from using ChatGPT for a short period of time on Thursday. Due to security and data considerations, many artificial intelligence (AI) tools are no longer available for employees to use, "Microsoft stated in an update message on its internal website. The media also saw a screenshot showing that Microsoft employees are unable to access ChatGPT on enterprise devices.