http://www.24dash.com/content/news/viewNews.php?navID=7&newsID=2803
"Children can gain access to Internet porn via their mobile phones, a consumer group warned. A loophole in phone safeguards lets youngsters obtain codes for adult websites by paying for them using premium rate text messages.
Researchers for Which? magazine got codes for eight porn sites using an O2 phone registered to a 15-year-old girl.
The phone company's filter system blocked adult material being sent directly to the handset - but still let through access codes to websites showing hardcore sex films, the consumer group said. "