The user generated content site YouTube has been forced to sort out an issue that has allowed hackers to launch fake pop up messages designed to take the user to an adult related site.
Code had been placed within the section reserved for comments and when the viewer watched the video a pop up appeared with a fake news story, but if the user clicked on it they would be taken away from the YouTube site.
Google, which owns YouTube, has stated that the issue is now fixed.
In fact it sorted the problem out within two hours of it being reported.
The hackers employed cross-site scripting (XSS).