The Chicopee, Massachusetts, public schools are recovering from a ransomware attack on their computer systems.
Earlier this week, employees of the Chicopee schools discovered they couldn't access files on their desktops because they had been encrypted. And they saw a new file on their computers.
Andrew Vernon, chief information officer with the schools, said the message was clear.
"It is a demand of ransom, to a financial effect, asking that we respond to a certain email address to fulfill the ransom," he said.
The district is not paying the ransom.
Vernon declined to say how much money was demanded.
He said the city had a disaster recovery plan in place, and everything should be fixed within a matter a weeks.
The mayor of Chicopee issued a press release saying no employee or student data was compromised.