A cybersecurity firm based in New York, Wiz, has reported discovering a significant amount of sensitive data belonging to the Chinese artificial intelligence startup DeepSeek that was unintentionally exposed online.
In a blog entry released on Wednesday, Wiz indicated that assessments of DeepSeek’s system revealed that the company had inadvertently left over one million lines of data unprotected. This data included confidential digital software keys and chat logs, which seemingly recorded user interactions with the company’s free AI assistant.
Ami Luttwak, Wiz’s chief technology officer, stated that DeepSeek acted swiftly to secure the exposed information after being notified by his team.
“They removed it in under an hour,” Luttwak noted. “However, the ease of access suggests that we are likely not the only ones who discovered this issue.”
DeepSeek has not yet responded to requests for commentary regarding the exposed data.
The rapid rise of DeepSeek following the introduction of its AI assistant has garnered excitement in China while raising concerns in the United States. The company’s ability to compete with OpenAI at a significantly lower cost has prompted discussions about the viability of the business models and profit margins of American AI companies, including Nvidia and Microsoft.
By Monday, DeepSeek had surpassed U.S. competitor ChatGPT in terms of downloads from the Apple App Store, which led to a selloff in technology shares globally.
© Thomson Reuters 2025
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