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Wed, Dec 23rd 2020 12:09pm Karl Bode In 2017, hackers and security researchers highlighted long-standing vulnerabilities in Signaling System 7 (SS7, or Common Channel Signalling System 7 in the US), a series of protocols first built in 1975 to help connect phone carriers around the world. While the problem isn t new, a 2016 60 Minutes report brought wider attention to the fact that the flaw can allow a hacker to track user location, dodge encryption, and even record private conversations. All while the intrusion looks like ordinary carrier to carrier chatter among a sea of other, privileged peering relationships. Telecom carriers and lobbyists have routinely downplayed the flaw and their multi-year failure to do much about it. In 2018, the CBC noted how Canadian wireless providers Bell and Rogers weren t even willing to talk about the flaw after the news outlet published an investigation showing how (using only a mobile phone number) it was possible to intercept the calls and

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