Longtime Slashdot reader mspohr shares a report from Gizmodo: Hackers for the Chinese government were able to deeply penetrate U.S. telecommunications infrastructure in ways that President Joe Biden’s administration hasn’t yet acknowledged, according to new reports from the Washington Post and New York Times. The hackers were able to listen to phone calls and read text messages, reportedly exploiting the system U.S. authorities use to wiretap Americans in criminal cases. The worst part? The networks are still compromised and it may take incredibly drastic measures to boot them from U.S. systems.

The hackers behind the infiltration of U.S. telecom infrastructure are known to Western intelligence agencies as Salt Typhoon, and this particular breach of U.S. equipment was first reported in early October by the Wall Street Journal. But Sen. Mark Warner, a Democrat from Virginia, spoke with the Washington Post and New York Times this week to warn the public that this is so much worse than we initially thought, dubbing it “the worst telecom hack in our nation’s history.” And those articles based on Warner’s warnings were published late Thursday.

Hackers weren’t able to monitor or intercept anything encrypted, according to the Times, which means that conversations over apps like Signal and Apple’s iMessage were probably protected. But end-to-end encryption over texts between Apple devices and Android devices, for instance, aren’t encrypted in the same way, meaning they were vulnerable to interception by Salt Typhoon, according to the Times. The details about how the hackers were able to push so deeply into U.S. systems are still scarce, but it has something to do with the ways in which U.S. authorities wiretap suspects in this country with a court order.