可信的证书权威机构发布数字证书，它们被用来鉴别用户和组织访问Web站点，e - mail服务器和其他安全系统的权限。
Trusted certificate authorities issue digital certificates, which are then used to authenticate users and organizations for access to Web sites, E-mail servers, and other secure systems.
在不远的将来，很多组织会将其基础设施如邮件，备份和安全系统迁移至SaaS应用，以租赁方式来节省开销。
In the near future, many organizations will, for example, dispense with their own infrastructures for E-mail, backup, and security - and save costs by renting instead.
对一个组织、一个企业来说，构建一个适合自身的网络安全系统是非常必要的。
To an organization, an enterprise, constructing an appropriate network security system is very necessary.
应用推荐