将文件存储到文档目录中有多安全？
我正在Swift和Xcode中编写一个iOS应用程序，允许用户从服务器下载一些文件并将其存储到iPhone的文档目录中。
这样做有多安全？
用户是否可以从应用程序外部访问这些文件之一，例如，将手机连接到计算机并将其移动或共享？如果用户有越狱的iPhone，他是否可以通过其他方式以其他方式访问下载文件的方法？
如果是这样，下载文件时应该加密文件吗？
I am writing an iOS app in Swift and Xcode where I allow users to download some files from a server and to store them into the iPhone's document directory.
How safe is it to do so?
Is it possible for a user to access one of these files from outside the app, for example by connecting their phone to a computer, and move them around or share them? If a user has a jailbroken iPhone, could he get a way to access the downloaded files in other ways other than the one I allow within my app?
And if so, should I encrypt my files when I download them?
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对于越狱的iPhone，我认为是的，可以访问应用程序目录。
对于普通iPhone，我很确定其他应用程序无法访问它，因为所有第三方应用程序均为“沙盒”
https://support.apple.com/en-gb/guide/security/sec15bfe098e/web#:~: text = sandboxing
;将手机连接到计算机。
For jailbroken iPhone i think yes it's possible to access apps directories.
For normal iPhone I'm pretty sure other apps can't access it as all third-party apps are “sandboxed"
https://support.apple.com/en-gb/guide/security/sec15bfe098e/web#:~:text=Sandboxing,information%20stored%20by%20other%20apps.
And no idea about connecting their phone to a computer.