Federal and state investigators are examining an attempt to breach an Ohio county’s election network that bears striking similarities to an incident in Colorado earlier this year, when government officials helped an outsider gain access to the county voting system in an effort to find fraud.

Data obtained in both instances were distributed at an August “cyber symposium” on election fraud hosted by MyPillow executive Mike Lindell, an ally of former president Donald Trump who has spent millions of dollars promoting false claims that the 2020 election was rigged.

The attempted breach in Ohio occurred on May 4 inside the county office of John Hamercheck (R), chairman of the Lake County Board of Commissioners, according to two individuals with knowledge of the incident, who spoke on the condition of anonymity because of the ongoing investigations. State and county officials said no sensitive data were obtained, but they determined that a private laptop was plugged into the county network in Hamercheck’s office, and that the routine network traffic captured by the computer was circulated at the same Lindell conference as the data from the Colorado breach.