Mr Randall said: "A Western Union BidPay cheque is sent from the person's PayPal account to the thief after he or she has unwittingly won the auction. The victim will have no idea that someone else has done this until a bank statement appears at the end of the month." eBay insisted that the system was safe. A spokesman said: "eBay uses state-of-the-art technology to ensure that the site is as secure as possible. Additionally, nearly 1,000 employees, with backgrounds in law enforcement, customer support, advanced computer engineering and analysis, are dedicated to making eBay one of the safest places in the world to trade."