Sen. Ron Wyden, D-Ore., and Rep. Ted Lieu, D-Calif., have written to Department of Homeland Security Secretary John Kelly about "inherent" issues with global telecommunications protocol Signaling System 7, TechCrunch reports. The flaws allow hackers to manipulate SS7 to access information from calls and texts. Some contend the government has used these vulnerabilities for its own gain. The letter asked Kelly to explain how the DHS had worked to inform citizens about the potential dangers with SS7 and how it plans to protect individuals and government officials from surveillance. “We suspect that most Americans simply have no idea how easy it is for a relatively sophisticated adversary to track their movements, tap their calls, and hack their smartphones,” their letter states.
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