Yes, I think so. And I forget to tell you that the dmg file was originally downloaded by my mobile phone via LTE, as my broadband is too slow. I transferred the dmg file to my computer via an application named WeChat, it might be the reason of my failure.
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And I forget to tell you that the dmg file was originally downloaded by my mobile phone via LTE, as my broadband is too slow. I transferred the dmg file to my computer via an application named WeChat, it might be the reason of my failure.
I think, you have found the cause.
If you are interested in how the qurantine flag works on macOS, then this blog post
has a lot of information:
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