| CyberScoop By
Tim Starks
September 10, 202

Major cyber intrusions by the Chinese hacking groups known as Salt Typhoon and Volt Typhoon have forced the FBI to change its methods of hunting sophisticated threats, a top FBI cyber official said Wednesday.

U.S. officials, allied governments and threat researchers have identified Salt Typhoon as the group behind the massive telecommunications hack revealed last fall but that could have been ongoing for years. Investigators have pointed at Volt Typhoon as a group that has infiltrated critical infrastructure to cause disruptions in the United States if China invades Taiwan and Americans intervene.

Those hacks were stealthier than in the past, and more patient, said Jason Bilnoski, deputy assistant director of the FBI’s cyber division. The Typhoons have focused on persistent access and gotten better at hiding their infiltration by using “living off the land” techniques that involve using legitimate tools within systems to camouflage their efforts, he said. That in turn has complicated FBI efforts to share indicators of compromise (IOCs).

“We’re having to now hunt as if they’re already on the network, and we’re hunting in ways we hadn’t before,” he said at the Billington Cybersecurity Summit. “They’re not dropping tools and malware that we used to see, and perhaps there’s not a lot of IOCs that we’d be able to share in certain situations.”

The hackers used to be “noisy,” with an emphasis on hitting a target quickly, stealing data and then escaping, Bilnoski said. But now for nation-backed attackers, “we’re watching exponential leaps” in tactics, techniques and procedures, he said.

Jermaine Roebuck, associate director for threat hunting at the Cybersecurity and Infrastructure Security Agency, said his agency is also seeing those kinds of changes in the level of stealth from sophisticated hackers, in addition to “a significant change” in their intentions and targeting.

“We saw a lot of espionage over the last several years, but here lately, there’s been a decided shift into computer network attack, prepositioning or disruption in terms of capabilities,” he said at the same conference.

The targeting has changed as organizations, including government agencies, have shifted to the cloud. “Well, guess what?” he asked. “The actors are going toward the cloud” in response.

They’ve also focused on “edge devices,” like devices that supply virtual private network connections or other services provided by managed service providers, Roebuck said. Organizations have less insight into the attacks those devices and providers are facing than more direct intrusions, he said.

nltimes.nl/ Thursday, 28 August 2025 - 12:50 -
Dutch intelligence agencies confirmed on Thursday that the country was targeted in the global cyberespionage campaign carried out by the Chinese state-linked hacker group Salt Typhoon. The campaign, which came to light in late 2024, focused on the international telecommunications sector.

The Dutch Military Intelligence and Security Service (MIVD) and the General Intelligence and Security Service (AIVD) said they independently verified portions of a U.S. investigation attributing the campaign to Salt Typhoon. “We can confirm parts of the U.S. findings through our own intelligence,” the agencies stated.

The warning aligns with alerts issued by the U.S. National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), and Federal Bureau of Investigation (FBI), as well as European intelligence services including Germany’s BND, Finland’s SUPO, the U.K.’s NCSC, and Italy’s AISE.

In the Netherlands, the targets were smaller Internet service and hosting providers rather than the major telecom operators. Investigations by the MIVD and AIVD indicate that the hackers gained access to routers of Dutch targets but, as far as is known, did not penetrate internal networks further. Where possible, the agencies and the National Cyber Security Centre (NCSC) shared threat information with affected organizations.

The agencies emphasized that China’s cyber activities have become increasingly sophisticated. “These activities are now so advanced that continuous effort and attention are needed to detect and counter cyber operations against Dutch interests,” the MIVD and AIVD said. They added that while proactive measures can reduce risk, complete prevention is not possible, posing a significant challenge to national cyber resilience