I think the title is bad, this new title makes it sound like its a normal test of a mobile phone while the article is actually about the security problem.

Can you suggest a better title?

one thing I found relevant in that blog was the answer from Hugo Barra: https://plus.google.com/+HugoBarra/posts/9GL9h2fT8H6

That's an interesting response, though this blog post seems to refute its statement that it's only done when the user explicitly turns on Mi Cloud.