The e-mail hoax was sent by an unknown hacker who managed to gain access to a university list server using the provost's user credentials.

The e-mail was sent around 1 a.m. Monday night and generated a flurry of calls from parents and students wanting to know what happened, said GMU spokesman Daniel Walsch. For the most part, those who called were not fooled by the hoax but wanted to know why it was sent out, Walsch said.

"We did get a number of calls from students and parents wondering what was going on," he said. "Some of the people were not sure if the message was legitimate," because it appeared to be coming from the provost's office, the spokesman said.

The matter has been turned over to local law enforcement authorities and the , Walsch said. "We do not know who was involved," Walsch said, "But if we find out who did this, we intend to prosecute that person or persons to the fullest extent of the law."

According to Walsch, the list server used to send the bogus e-mail is typically used to send out alerts relating to issues such as weather-related closures. Only a "handful" of people at the university have access to the list server, he added. Whoever sent the hoax e-mail didn't appear to have hacked into the system. Instead, the person appears to have used the provost's credentials to gain access to it and send out the e-mail, he said.