(CNN) A Russian company told a federal court Thursday that it believes that among the terabytes of data collected by special counsel Robert Mueller's investigation is a nude selfie.

Concord Management and Catering -- without providing information on who is depicted in the nude selfie -- questions whether there could be national security concerns related to such a holding.

"Could the manner in which he collected a nude selfie really threaten the national security of the United States," Concord's lawyers ask in the filing.

Concord's filing Thursday comes amid a drawn-out fight where the Russian company seeks to access what the Justice Department says is "sensitive" evidence in the case, which could reveal national security and American investigative secrets to powerful foreigners.

The company is objecting to Mueller's request to share classified information with the judge that is kept secret and protected from Concord's lawyers' view.

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