上海大字 SHANGH AI JIAO TONG INTVEANTY Http is not secure Nmnl Http TencentWebsiteWww.qq.com FacultySystemofCseWebsitewww.cs.stu.edu.cn/studentlogin.aspx Https Mail system of SJTU: mail sjtu. edu.cn GitHub Login Website: github. com▪ HTTP ▪ Tencent Website: www.qq.com ▪ Faculty System of CSE Website : www.cs.sjtu.edu.cn/StudentLogin.aspx ▪ HTTPS ▪ Mail system of SJTU: mail.sjtu.edu.cn ▪ GitHub Login Website: github.com HTTP is not secure