Unencrypted Satellite Signals Threaten Privacy
Researchers intercepted 39 satellites using $600 equipment over three years.
Data included US calls, texts, in-flight Wi-Fi, military, and unencrypted vessel traffic.
Encryption is too costly for remote receivers, leaving many satellite links unsecured.
T-Mobile, Walmart, and KPU fixed vulnerabilities after researchers notified them.
Researchers warn 40% of Earth's signals are broadcast via unencrypted geosynchronous satellites.
4 weeks ago