Microsoft Corp. and OpenAI are investigating whether data output from OpenAI’s technology was obtained in an unauthorized manner by a group linked to Chinese artificial intelligence startup DeepSeek,

Microsoft (MSFT) and OpenAI are investigating whether a group connected to the Chinese AI startup DeepSeek accessed OpenAI’s data without permission, according to a new report.

DeepSeek, a Chinese startup that's throwing tech valuations into chaos and challenging U.S. dominance in the field. Its creators claim it can do what U.S. models do but at a fraction of the cost. Steve DiPaola,