DENVER – A ransom was paid to the hackers responsible for a cyberattack on a Denver college with hopes to restore their incapacitated systems, university officials said.

Campus leaders at Regis University have shut down computer, phone and email systems and setup another website because of a cyberattack they believe came from outside the United States, The Denver Post reports.

The cyberattack continued to impair day-to-day operations at the private Jesuit college for months after paying an undisclosed amount, college officials told The Denver Post for the first time.

College officials had not previously disclosed the nature of the attack or that it involved ransomware, which can render computer systems inoperable until financial demands are met, authorities said.

“The attack hit us the morning students were moving back to campus,” Regis senior vice president Salvador Aceves said. “At this point, there was no evidence found that indicated that these malicious actors compromised our data.”

Regis is holding a cybersecurity summit Tuesday gathering professionals from across the country to publicly talk about the ransomware attack to help prevent such incidents from happening again, college officials said.

“Even five years ago, an organization that was attacked wouldn’t tell anybody,” said Shari Plantz-Masters, dean of Regis’s College of Computer & Information Sciences. “There was the idea that you can’t publish what has happened to you because it shows you’re vulnerable. It’s become so prevalent that if you don’t band together, you’re going to have a real tough time combating this.”