Beyond the headline numbers, investors focus heavily on growth for Microsoft's Azure cloud-computing business — and that came up short this time around. Microsoft reported 31% growth for Azure in constant currency.

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Microsoft and OpenAI are probing if data output from the ChatGPT maker's technology was obtained in an unauthorized manner by a group linked to Chinese artificial intelligence (AI) startup DeepSeek, Bloomberg News reported on Tuesday.

Microsoft shares dropped 5% after issuing weak current-quarter guidance. The software giant topped Wall Street's fiscal second-quarter estimates, posting earnings of $3.23 per share on $69.63 billion in revenue.

Shares in Microsoft fell 2.8% in afterhours trading as the tech giant released fourth-quarter earnings. The company reported earnings per share of $3.23 and revenue of $69.6 billion. Microsoft was expected to report earnings per share of $3.