So 99% of people have nothing to worry about as all these apps look like junk apps to me.
As an expat living in China I can tell you, wechat is a huge deal..... Huge. We pay our bills using it. Book flights in it. Trains. Electricity and everything.
Also the official china Unicom app, pay phone bill linked to our credit cards etc.
On a side note today I got a pop asking me to change my password. I used the laptop to go manually to appleid and reset. But anyone know if this apple? Or to do with malware?