http://vww6ybal4bd7szmgncyruucpgfkqahzddi37ktceo3ah7ngmcopnpyyd.onion/zh/security/device-security/software-safety
When side loading is enabled, your computer is more vulnerable to many different forms of malware attacks. For this reason, both macOS and Windows are trying to move to a model where side loading is disabled by default. Note: You need to use caution with the official Android application store, Google Play, as there are often copycat applications designed to impersonate the real application.