iOS 9 update??
If a user already has WeChat on their iPhone, and updates to iOS 9, which in turn means upgrading the WeChat app, does this mean they will be infected?
It's not clear what the timeline was for the outbreak. Are users who have had WeChat on their phone for 2 years or more safe? Did the "infected" version of WeChat only affect users who recently added the app to their phone?
Did the virus spread through regular updates? Or only from the app store on new downloads??