Improve the security algorithim. You deliberately lock me out of my account then suggest I call user support with my credit card. Yahoo appears to lock out customers to generate more revenue! Using my data isnt my chouce. The original yahoo didnt do this. Revenue can be increased with more users that are delighted with service. Try improving the user experience. Yahoo has only cut features and abused users. Im looking at new email options. I hate yahoo service and im sure the advertisers know yahoo is an old broken business model.