However, although performing a client-side check of the file name can be useful, it does not guarantee that users cannot upload an unsafe file type, such as an executable file.
但是，虽然在用户端执行档案名称检查很好用，却不能保证使用者无法上载不安全的档案类型，例如可执行档。
Automatically inferring an "Add" operation is similarly unsafe. We don't want our SCM tool automatically adding any file which happens to show up in our working folder.
让配置管理工具客户端对提示一个文件“丢失”了，并且自动的假设这个文件可能被从库里删除了这种情况不是很明智的。
Unfortunately, their portability also makes them vulnerable against unauthorized access, which in turn makes them unsafe for sensitive file storage.
不幸的是，它们的可移植性也使得它们容易受到未经授权的访问，而这又使得它们不能安全敏感文件存储。
Unfortunately, their portability also makes them vulnerable against unauthorized access, which in turn makes them unsafe for sensitive file storage.
不幸的是，它们的可移植性也使得它们容易受到未经授权的访问，而这又使得它们不能安全敏感文件存储。
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