Holland College says no confidential information was compromised after its website was hacked early Thursday morning.
The college's usual website was replaced by a message saying the school had been warned and should update its security if it is really concerned about confidential information.
IT manager Richard MacDonald said the website was quickly restored by Holland College staff.
"I'm very confident that no information was compromised," he said.
"There's no confidential information on that server itself. The worst they're going to do on the server is disrupt it or make us look bad by hacking the site. I have no worries at all in that regard."
MacDonald said the school has not called the police.
He said the IT department is working to identify the security vulnerability and will make sure the site isn't hacked again.