One in 10 Britons' PC have picked up a computer virus by visiting adult sites, says Moneysupermarket.com.
According to research by the comparison website, 19 percent of web users say they were infected as a result of general surfing, while 12 percent blamed opening files from unknown senders.
Moneysupermarket.com also revealed that of those infected by viruses. Five percent of respondents said personal information was stolen.
James Parker, manager of broadband at moneysupermarket.com, said: "People need to be more aware of security threats than ever before. Most people use some of their personal details online - whether through internet banking or online shopping - and it's vital that people take appropriate steps to protect this information and themselves".