The main fields of current research on XML safety issues are XML Encryption, XML Digital Signature and XML Access Control.

目前XML安全问题研究的主要领域有：XML加密、XML数字签名和XML访问控制。

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Siemens VDO products for automobile chassis and bodies, such as airbags, antilock brakes and access control systems also help improve safety and security.

为汽车底盘和车身设计的产品(如安全气囊、防抱死系统和进入控制系统)还提高了汽车的安全性能。

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Discretionary access control (DAC) is the kernel of most protection mechanism, and the research on safety of DAC concerns whether rights can be leaked to unauthorized subjects.

自由访问控制(DAC)是大多数操作系统保护机制的核心，DAC的安全性研究关注对象的权限是否被泄漏给未授权主体。

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