A woman with two Chinese passports and a computer malware device was supposed to have lied to join the club of US President Donald Trump.
The woman, Eugene Zhang, 32, told security guards he was at the Florida club to go to the pool, according to a criminal complaint filed with the US District Court.
"Because of a potential language barrier problem," the staff thought she was connected to a member of the club and let her come in.
Mr Trump was in Palm Beach at the incident on Saturday, March 30.
Ms. Zhang ̵
According to court documents, when she joined the club, Ms. Zhang changed her story by telling the receptionist that she was there to attend the "Chinese American United Nations" event.
The Receptionist, who knew that such an event had been scheduled, became suspicious of Mrs. Zhang.
The suspect was transferred from the property for further inquiries.
She told agents she was instructed by a friend identified only as Charles to travel from Shanghai, China to Palm Beach to attend the supposed event of the United Nations but did not provide more details, according to the court. documents.
She said that Charles encouraged her to try to talk with a member of the president's family about Sino-US economic relations, Afffedefit said.
Samuel Ivanovich, the secret service agent, said Ms. Zhang was wearing four mobile phones, a laptop, an external hard disk and a thumb containing a computer virus but no swimsuit.
In the court document, Mr. Ivanovic notes that Ms. Zhang "has spoken freely and without any problems" in English, has become "verbally aggressive" with the authorities as the investigation progresses.  The Secret Service said in a statement that "it does not determine who is invited or welcome to Mar-a-Lago, this is the responsibility of the host organization."
"The Mar-a- Mrs. Zhang has so far refused to comment.
She will remain in custody for a hearing next week.
If convicted, she may face a maximum of five years in prison.