什么是两步验证？
Two Factor Auth List
U2Fishing: Potential Security Threat Introduced by U2F Key Wrapping Mechanism
Evilginx - Advanced Phishing with Two-factor Authentication Bypass
加密入门（四）：Gpg4win
Secure Messaging? More Like A Secure Mess.
走過不留痕跡：用半小時加密你的一切
Surveillance Self-Defense: Tips, Tools and How-tos for Safer Online Communications