As a service provider, you can do your very best to protect the data as best as possible. But that data is stored somewhere. And as TS indicates, you should not immediately trust that your data there (Cloud Based) is also safe.
There are many providers of cloud services. The most common ones are from Microsoft (Azure) and Amazon (AWS). But Uncle Ali also offers cloud services.
An additional factor for security is the location of the data center where the cloud data is stored. Stricter requirements apply in Europe than in the US, for example. I can't imagine how Ali would deal with this.
I have good reasons to believe that data security is okay with Azure and AWS (MyRoute?).
But the factor is added by the service provider. @Corjan-Meijerink already gave a clear answer to that.
But the greatest risk factor is always posed by the user self.