Multiple U.S. broadband providers, including Verizon, AT&T, and Lumen Technologies, have been breached by a Chinese hacking group tracked as Salt Typhoon, the Wall Street Journal reports. The purpose of the attack appears to be intelligence collection as the hackers might have had access to systems used by the U.S. federal government for court-authorized network wiretapping requests. It is unclear when the intrusion occurred, but WSJ cites people familiar with the matter, saying that "for months or longer, the hackers might have held access to network infrastructure used to cooperate with lawful U.S. requests for communications data." Salt Typhoon is...