为了加强您的在线 保障，开启两步验证至关关键。此措施要求您在提供密码后，还需验证一种第二验证途径，比如发送至您的手机的确认码，或者使用身份验证软件。通过这种多因素验证，即使您的密码丢失，攻击者也无法访问您的账号。 copyright：什么是双因素认

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