The FBI and U.S. officials are raising alarms over a significant cyber espionage campaign attributed to the Chinese hacking group Salt Typhoon, which has compromised at least eight U.S. telecom providers and affected dozens of nations. An urgent advisory has been issued advising Americans to stop sending text messages between iPhone and Android devices, as communication may be intercepted. Experts recommend switching to encrypted messaging apps to enhance security amid continued threats. The White House confirmed that sensitive data was stolen from a large number of American users, highlighting the severity of this breach and the persistent presence of these hackers within U.S. telecommunications systems.