Blog Posts by Bill Mills

  • Reclaiming Yahoo! Usernames In A Way That’s Secure: Require-Recipient-Valid-Since

    As we move forward with making unused Yahoo! usernames available to new owners, we’ve always thought about making the process as secure as possible.

    I wanted to share one measure we’re taking to protect the privacy of our users who had an e-mail address that may be re-used, which is a very small percentage of the accounts that we will be recycling. We encourage anyone using e-mail to communicate with their users, especially for e-commerce and recovering their accounts, to adopt this measure to ensure the security of their users.

    To communicate that a username has a new owner to e-commerce sites like “JoesAntiques.com,” or social networking sites like Facebook, we’ll allow them to “ask” for a new type of validation when sending an email to a specific Yahoo! user. The field, which can be requested via an email’s header is called “Require-Recipient-Valid-Since.”

    We feel that our approach, which we’ve worked on with our friends at Facebook, is a good solution for both our users and our

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