Traditional security ways, such as PIN code, are no longer reliable and difficult to satisfy the complex behaviors of e-commerce and information security.

在此潮流之下，传统的保密与认证方式如：识别码，已难以应付日益庞杂的电子交易与信息保密措施等的需求。

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"It is possible that with an old, not properly maintained fifth wheel that the device can get loose, the sides can wear away, the hole that the pin fits into is no longer snug and rigid, " Scott said.

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