This question has been haunting the web application security field for quite some time and rest assured that no one will ever give you a definite answer.

这个问题总是在web应用安全领域被提出，也总是没有人能给出一个确切的答案。

youdao

Room and board one-stop service, security, rest assured that well-developed logistics industry.

吃住一条龙服务，安全放心，物流业发达。

youdao

Such as: [security code query input is correct, prompted for your query products for ****** company production of the product, this product is genuine, please rest assured that the use of!

如：【查询输入的防伪编码为正确的，系统提示为您所查询的产品为******公司生产的产品，此产品为正品，请放心使用！】。

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Dropcam utilizes bank-level security to encrypt all video and stores it securely offsite in the cloud so users can rest assured that they are the only one with access their video.

ENGADGET: Dropcam's iOS app goes big, now optimized for iPad