Pfizer has filed a lawsuit against its employee, claiming that she committed the theft of confidential documents, including those related to the COVID-19 vaccine.

According to the plaintiff, the employee intended to go to work for a competitor of Pfizer.

According to the lawsuit filed in San Diego federal Court, Chunxiao Li violated the terms of the contract by uploading more than 12 thousand files to her personal accounts and devices without permission.

Among the downloaded materials were internal documents of the company related to the Pfizer/BioNTech vaccine and Pfizer’s relationship with the German partner.

According to the lawsuit, Li, who held the post of assistant director of Statistics, made active efforts to hide the fact of illegal downloading of documents.

According to the lawsuit, Lee quit Pfizer after 15 years of work, presumably to move to the pharmaceutical company Xencor.

Li did not respond to a request for comment, Xencor is not a defendant in this case and declined to comment on the situation.

Pfizer said that competitors are actively trying to recruit its employees, “especially in 2021.”

A federal district judge temporarily banned Lee from using Pfizer’s trade secrets.