THE BASIC PRINCIPLES OF SIGNAL官网

Madnick claimed the specific situation explained by Goldberg also showed A further vulnerability by utilizing general public stop-to-stop encryption messaging: slip-ups by a person who sent messages to the wrong human being.隐私：端到端加密（默认，所有通信），最小化元数据收集（仅存储注册时间和最后登录时间）