If you're subscribed to BT's landline phone service, you may want to keep an eye on your bill in the near future. The British provider recently patched up a website issue that showed account holders' full names, but attention is being drawn to an approach that lets visitors add paid features like TV service using only an account's phone number and postcode as credentials. When both of these are potentially in the public eye, that creates understandable concerns that a rogue agent could hike someone's rates without consent -- even the email address BT uses to confirm changes is only chose
