<ul><li>U.S. officials are urging Americans to use encrypted messaging apps to prevent correspondence from being hacked.</li><li>The guidance follows a large-scale cyberattack campaign against U.S. telecommunications companies by a Chinese state-backed hacking group.</li><li>Officials recommend using encryption for text messaging and encrypted voice communication to enhance security.</li><li>Other cybersecurity guidance includes implementing multifactor authentication and using devices with timely operating system updates.</li></ul>

US urges use of encrypted messaging apps following Salt Typhoon hack

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