# Microsoft Faces Copyright Lawsuit from Authors Over AI Training Data
A group of authors has sued Microsoft, claiming the company used nearly 200,000 pirated books to train its Megatron AI system without permission or compensation. The lawsuit alleges copyright infringement as Microsoft incorporated these works into AI training datasets without seeking approval from rights holders. This case joins similar lawsuits against other AI companies like OpenAI, Meta, and Anthropic, highlighting growing tensions between tech advancement and intellectual property rights. The lawsuit raises fundamental questions about fair use doctrine in AI development, potential financial impacts on creators, and the future regulatory landscape for AI training data. The outcome could significantly influence how copyright law applies to artificial intelligence development.