Sun claimed that the data was given strictly for the purpose of confirming his wealth during talks about adding him to Bloomberg’s Billionaires Index and that it was shared under a promise of confidentiality.

Filed on August 11 in a Delaware federal court, the lawsuit seeks immediate and permanent blocks against the release of his crypto asset breakdown. Sun argued that publishing such specifics could pose serious security threats.

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The lawsuit stated that making his exact holdings public could allow attackers to identify and track his wallets.

The filing outlines how Bloomberg approached Sun in February 2025. According to the complaint, journalist Muyao Shen reached out to include Sun in the Billionaires Index, which ranks the 500 richest individuals globally.

Although Sun was cautious about sharing his financial details due to the nature of digital assets, he eventually agreed after being assured the information would not be made public. His team reportedly emphasized multiple times that the data was private and intended for internal use only.

One of the lawsuit’s concerns is the possibility of “address clustering”, a method used to match public blockchain transactions to individuals. The filing warned that if Bloomberg reveals the specific amounts Sun holds, it could make it easier for others to trace his wallets and possibly target him.

Meanwhile, Sun recently completed Blue Origin’s NS-34 spaceflight after securing his seat in 2021 with a $28 million bid. What did he say about the spaceflight? Read the full story.