A woman suspected to be a Russian spy worked at the U.S. Embassy in Moscow and had access to highly sensitive information for more than a decade before she was quietly let go in 2017, according to a report.

The Russian national, who was recruited by the U.S. Secret Service, had access to the agency’s intranet and emails — including presidential and vice presidential schedules — until a periodic U.S. Department of State’s Regional Security Office security check in 2016, reported the Guardian on Thursday.