Key Takeaways
- Signaling System No. 7 (SS7) is an outdated telephony protocol that may expose your privacy to cyber threats and surveillance.
- SS7 vulnerabilities have been exploited by criminals to drain bank accounts, governments to track cellphone users, and intelligence firms to spy on people worldwide.
- To protect yourself from SS7 vulnerabilities, use secure messaging apps with end-to-end encryption like Signal or WhatsApp, as they offer better privacy and security than traditional SMS and phone services.