在文化、军事、安全等领域的交流也不断拓展。

The exchanges in culture, military affairs, and security have been increasing.

youdao

相反，有些操作是安全的交流，而其他的操作可能很危险，因为它们更改了服务器。

Instead, some actions are safe interactions, whereas others can be unsafe, because they modify the server.

youdao

如果企业知道他们自己的安全漏洞，并多与安全社区交流，那么它们就能抵挡住apt攻击，并最终击败黑客的网络犯罪活动。

If companies are on top of knowing their security weaknesses and communicate with the security community, APT attacks can be withstood and ultimately turned against the criminals perpetrating them.

youdao

But the point is that how is Facebook, how is Amazon possibly going to communicate securely with you or your laptop using cryptology if you both have to know the same secrets.

关键是Facebook是怎么样，亚马逊是怎么样安全地和你或你的计算机,使用加密技术进行交流的，如果你们两个都,知道那个同样的密钥。

哈佛公开课 - 计算机科学课程节选