One piece of information RFID does not transmit is the CVV (Credit Verification Value) security codes on each credit card, according to Snopes.

据Snopes网站介绍， RFID 有一项信息没有传输，那就是信用卡上的 CVV (信用卡验证值) 安全码,。

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Information Hiding is a new network security technology, it adopted the confidential information to other hidden vector to transmit this is not easily found by others.

信息隐藏技术是一门新的网络安全技术，它通过把保密信息隐藏到其它载体中来传输，这样不等闲被别人发现。

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According to data signature, evidence of identity, data encryption was used, the question of data security was solved, especial technicality of data encryption made data transmit become security.

随着数字签名、身份验证、数据加密技术的应用，数据安全问题得到了缓解，尤其是数据加密技术使网络数据传输更加安全。

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Bombardier also teamed up with another firm to develop a security system that will coordinate and transmit video footage taken inside the traincars with footage taken by cameras in stations and along the routes.

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Then the system asked me to insert my passport so it could optically scan the special set of letters to identify me with the system and transmit the data to the Department of Homeland Security.

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