The Epilepsy Foundation closed its forums last week to remove malicious postings and tighten security after vandals posted rapidly flashing images over the Easter holiday that triggered seizures in some members.
"This was clearly an act of vandalism with the intent to harm people, and we shut the attack down immediately," Eric R. Hargis, president and CEO of the Epilepsy Foundation, said in the statement. "Weve established deterrents in the system to prevent similar incidences."
While comment spam can be an annoyance for many Internet visitors, flashing images can trigger seizures and cause pain to people with photosensitive epilepsy. While more than 3 million Americans have epilepsy, only about 3 percent have photosensitive epilepsy, according to the Epilepsy Foundation. The blinking image caused headaches among several of the forum's visitors and caused some viewers to stare blankly at the screen, according to the Wired News report.
iframe attacks that seed legitimate sites with malicious scripts that redirect visitors.
If you have tips or insights on this topic, please contact SecurityFocus.
Posted by: Robert Lemos