This is your China Hack Report: Daily US Tech Defense podcast.
Hey, it’s Ting, your friendly cyber sleuth, and welcome to the “China Hack Report: Daily US Tech Defense” for July 1, 2025. Here’s your rapid-fire download on what’s been sizzling on the cyber front against US interests in the last 24 hours—spoiler: it’s been a wild ride.
Let’s dive right in. The name on everyone’s lips is Salt Typhoon, the Chinese-linked cyber group that’s back with new tricks. Fresh from headlines late last year for hitting T-Mobile and other telecom giants, Salt Typhoon just resurfaced—this time, targeting data center operators and residential ISPs. US agencies now believe several internet providers suffered silent reconnaissance attempts. The chilling part? These intrusions could have easily gone unnoticed if Microsoft security researchers hadn’t picked up odd traffic signatures earlier this year.
The attacks aren’t limited to sniffing around networks. Lawmakers like Mark Green and Bennie Thompson are sounding the alarm—Green even pressed the Department of Homeland Security (DHS) for full disclosure on these intrusions, urging an urgent review of internal responses. Meanwhile, the Cyber Safety Review Board, previously scrapped and now demanded back, was actually probing these Chinese hacks before getting the axe. At the same time, CISA is battling budget cuts while being expected to mount an ever-stronger defense line. So, if you’re thinking “do more with less” is a cyber mantra, think again; the experts say that’s a recipe for disaster when you’re up against an adversary like Salt Typhoon.
But wait, there’s more. Chinese hackers haven’t taken a vacation from targeting US critical infrastructure—think energy grids, defense assets, and government communications. The latest Defense Intelligence Agency (DIA) threat assessment underscores that Chinese cyber actors are pre-positioning, essentially lying in wait to potentially disrupt US systems at a moment’s notice. This isn’t just theoretical: if things heat up geopolitically, Beijing could flip the switch from espionage to direct sabotage of our critical infrastructure.
The malware du jour? SentinelOne just outed a sophisticated, previously unseen backdoor lurking in the networks of multiple critical infrastructure firms globally. While SentinelOne itself fended off a breach, the underlying threat actor is actively surveilling IT vendors to gain indirect access—a classic supply chain attack. The malware exploits outdated authentication APIs and tries to bypass endpoint monitoring systems, making emergency patching essential.
CISA’s latest alert rings loud: all US-based telecom, data center, and defense contractors should immediately patch externally-facing assets, audit all privileged accounts, and watch for anomalous authentication attempts. The agency is urging everyone to apply the just-released emergency updates to remote access tools and email platforms—especially anything Microsoft-branded, since Exchange remains a prime target.
If you’re a cyber defender, now’s the time to check your logs, drill your incident response, and remind your IT crew that no, those weird file transfers at 3am are not “routine maintenance.”
Stay sharp, keep your patches fresher than your coffee, and I’ll see you on the frontlines tomorrow. This is Ting, signing off—watch those packets!
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