Paypal is vowing to block users from it's service who are using "unsafe browsers", customers will first be warned but will be blocked from the service if they continue to use the unsafe technology. Paypal says "an alarming fact that there is a significant set of users who use very old and vulnerable browsers such as Internet Explorer 4". In fact they claim that some users are still employing Internet Explorer 3 which is more than 10 years old! The company also said "In our view letting users view the PayPal site on [an unsafe] browser is equal to a car manufacturer allowing drivers to buy one of their vehicles without seatbelts." BBC story here.