closed user group with outgoing access

例句：

1. 1. Our company has a closed user group that only allows authorized personnel to access the system.
   我们公司有一个封闭的用户组，只有授权人员才能访问系统。
2. 2.The closed user group provides secure access to sensitive data without compromising privacy.
   封闭用户组提供对敏感数据的加密访问，而不牺牲隐私。
3. 3. With the introduction of new security measures, our closed user group now requires additional authentication before granting access.
   随着新安全措施的引入，我们的封闭用户组现在在授予访问权限之前需要额外的认证。