End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
http://mehrejonoob.farafile.ir/file/28325/مقاله-ترجمه-شده--مروری-بر-مسئله-امنیت-در-اینترنت-اشیا