DETROIT (Reuters) -Hackers have tried to extort "multiple" school districts in the United States using previously stolen data from education software and cloud provider PowerSchool, the company said in a statement on Wednesday. The data stolen varied, the company said at the time, but could have included names, contact information, dates of birth, limited medical alert information, and social security numbers. In an update on Wednesday the company said it was "aware that a threat actor has reached out to multiple school district customers in an attempt to extort them," and for the first time acknowledged that the company paid a ransom for an undisclosed amount to the hackers responsible for the breach.