Alleged intrusion spotted in June updated  Chinese government cyberspies Volt Typhoon reportedly breached Singapore Telecommunications over the summer as part of their ongoing attacks against critical infrastructure operators.

There’s now evidence that the Salt Typhoon hack extends past those three companies to other America service providers, and to companies in other parts of the world, including Southeast Asia. But AT&T and Verizon make up a huge majority of the connectivity in the country, and Lumen is the leader in broadband provision.

Singapore Telecommunications Ltd., Singapore’s largest mobile carrier, was breached by Chinese state-sponsored hackers this summer as part of a broader campaign against telecommunications companies and other critical infrastructure operators around the world,