SS7 Flaw is a vulnerable one. It is basically controls all our phone calls and messages. One can do anything with our number if they had SS7 admin access. Read full post here: http://www.iqbrain.in/blogs/post/How-to-hack-Gmail-using-SS7-Flaw/ Facebook: https://www.facebook.com/iqbrainapp
This blog is linked to its official website. https://www.iqbrain.in