<ul><li>SS7 is a system that was created in 1975 to secure phone calls.</li><li>However, with an increase in the number of cellular network providers, SS7 has become vulnerable.</li><li>Individuals can now buy access to SS7 for tracking locations and intercepting calls and SMS messages.</li><li>The Pegasus spyware, distributed to governments, can exploit SS7 vulnerabilities by installing malware through an unanswered WhatsApp call.</li></ul>

SS7 — How Your Phone Can Be Hacked With an Unanswered WhatsApp Call

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