"Unknown miscreants had a good time two weekends ago when they posted
hundreds of flashing animated images onto discussion boards hosted by
the Landover, Md.-based Epilepsy Foundation.
Flashing lights or bold moving patterns can trigger often
violent seizures among 3 percent of the estimated 50 million epileptics
worldwide.
"I was on the phone when it happened, and I couldn't move and couldn't
speak," RyAnne Fultz, who has epilepsy, told Wired News about her
reaction to viewing one of the images on March 23.
Fultz's 11-year-old son walked over and closed the browser
window after about 10 seconds. Fortunately, she suffered nothing more
than a bad headache.
By then, the second day of vandalism on
EpilepsyFoundation.org, the jerks had moved on to hijacking the
browsers of anyone who clicked on certain forum posts, filling the
screens with bright, flashing colors."
Article Link: http://www.foxnews.com/story/0,2933,343808,00.html