Is there a translation of how they got into SS7?  Google rejects the PDF as too large to translate.[1]<p>[1] <a href="http:&#x2F;&#x2F;www.ptsecurity.ru&#x2F;download&#x2F;PT_SS7_security_2014_rus.pdf" rel="nofollow">http:&#x2F;&#x2F;www.ptsecurity.ru&#x2F;download&#x2F;PT_SS7_security_2014_rus.p...</a>