Confide - 私人聊天 & 秘密即時訊息
Mobile Heroes
Signal:私密通訊軟件
Signal Foundation
SafeSwiss® - 加密信使
Safeswiss Secure Communications
CoverMe - Second Phone Number
CoverMe Secure Messenger Inc.
Messenger
Meta Platforms, Inc.
Telegram
Telegram FZ-LLC
WeChat
WeChat International
LINE
LINE (LY Corporation)
WhatsApp Messenger
WhatsApp LLC