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Motherboard has identified a specific UK bank that has fallen victim to so-called SS7 attacks, and sources say the issue is wider than previously reported. Sophisticated hackers have long exploited flaws in SS7, a protocol used by telecom companies to coordinate how they route texts and calls around the world. Those who exploit SS7 can potentially track phones across the other side of the planet, and intercept text messages and phone calls without hacking the phone itself. This activity was typically only within reach of intelligence agencies or surveillance