Suppose a share-trading account is closed for lack of verification: who bears the risk if the price of the shares in the account fall?

ECONOMIST: Security and financial services

She said the company added measures to boost security on Yihaodian.com, including the addition of account-verification codes.

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Medicare never calls anyone to ask for verification of Medicare, Social Security or bank account numbers.

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Two-step verification drastically reduces the chances of someone stealing the personal information from your e-mail account because hackers would have to not only get a password and your user name, they would also have to have access to the mobile phone to which the code is sent.

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