Story highlights Prosecutors indicate they think there are more documents in the case not yet discovered

Winner, who pleads not guilty, is denied bail

Augusta, Georgia (CNN) Reality Winner pleaded not guilty in federal court Thursday to one charge in connection with removing classified material from a government facility and giving it to an unauthorized person.

She was denied bail.

The 25-year-old federal contractor was charged with leaking information regarding a 2016 Russian military intelligence cyberattack to The Intercept, an online news outlet.

She is accused of revealing classified information, used as the basis for an article published Monday by The Intercept, which detailed a classified National Security Agency memo. The NSA report, dated May 5, provides details of a 2016 Russian cyberattack on a US voting software supplier, though there is no evidence the hack affected any votes.

Assistant US Attorney Jennifer Solari said it is unclear how much material is involved in the case. Authorities are looking at two laptops, a tablet and four cellphones seized from Winner's home as well as spiral-bound notebooks.

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