内部爬行是一种收集和扫描活动，旨在针对一些不频繁的活动执行，因此目标系统不会过分地受到活动的影响。

Crawling by its very nature is a gathering and scanning activity designed to be performed on an infrequent basis so that the target system is not overly impacted by the activity.

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高盛是通过内部监测系统发现这起违规事件的，该系统会扫描员工的电子邮件以发现是否转移公司的计算机代码，并对任何将文件上传到外部服务器的行为发出警报。

Goldman discovered the alleged breach through monitoring systems that scan employees' email messages for transfers of computer code and flag up any attempts to upload files to external servers.

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