Details impacted include members' names and addresses.
Last week, the Y said it was closing its downtown St. Paul location.
The Y hopes all metro locations will be open again by early August.
The company says it has also created an education fund for George Floyd's children
It plans to help families of "essential" workers during the COVID-19 outbreak.
Fortunately, the child wasn't seriously injured.
He was found at the YMCA in downtown Duluth.