NRL superstar Jarryd Hayne has been left red-faced after pornographic images were displayed during a school presentation on cyber security.

Hayne's phone was connected to a public wi-fi network displaying his browsing history as part of the lesson, when lewd images appeared on the screen in front of hundreds of students at Robina State High School.

Hayne was giving the presentation on behalf of Norton Security.

Norton Security's Paul Savvides confirmed the images were not from Hayne's phone.

"During our wi-fi demo we had an open network that was available for anyone to connect to and someone had connected to the network and browsed to a site where the images were displayed," Mr Savvides said.

"I've just checked and the device ... that did that was not Jarryd's phone.

"We do this demo in many scenarios and haven't had this happen before, so it is unfortunate.

"It's unfortunate but all I can say is it definitely was not Jarryd's device."

Hayne said it was an awkward situation.

"I shut my phone straight away so that way I was logged off," he said.

Hayne's club, the Gold Coast Titans, said Norton and Titans staff were working with the school to ensure the welfare of all students in attendance was a priority.

"As such the Gold Coast Titans will not be making any further comment on the matter," a spokesman said.