<ul><li>The U.S. government is urging senior politicians and high-ranking officials to lock down their devices amid the ongoing Chinese breaches of at least eight major telecom providers.</li><li>CISA advises officials to enable advanced security features like Apple's Lockdown Mode to limit the phone's attack surface.</li><li>Officials are also advised to switch to end-to-end encrypted messaging apps, such as Signal, to protect against communication interception.</li><li>CISA recommends the use of phishing-resistant multi-factor authentication and telecom-level account PINs to safeguard against SIM-swapping attacks.</li></ul>

US government urges high-ranking officials to lock down mobile devices following telecom breaches

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