First, that security depends on a combination of technology and policy; and second, that no system is ever totally secure.

第一，安全依赖于技术和政策的联合体。第二，永远没有完全安全的系统。

youdao

Members of that group have no knowledge of any other records in the system, other than those with their security policy.

那个小组的成员对这个系统中的其它记录是一无所知的，除了那些他们安全策略的记录。

youdao

These actions can be security configuration changes, key and certificate management, access control policy changes, bus and other system resources management, and so on.

这些操作可以是安全配置更改、密钥和证书管理、访问控制策略更改、总线和其他系统资源管理等等。

youdao

We can't assume that each home will have an IT expert to design and manage the policy, security and integrity of the system.

CNN: Home, sweet networked home

NATO's joint-task-force system, patronises European security policy.

ECONOMIST: Redefining NATO

I'm taking action in three basic areas: personnel, national security policy, and the process for making sure that the system works.

CNN: Iran-Contra Affair