China’s Salt Typhoon: A Comedy of Unpatched Errors in US Networks
The Salt Typhoon threat actors are exploiting a four-year-old unpatched security flaw in Microsoft Exchange Server, leaving 91% of vulnerable instances exposed. Despite repeated warnings, organizations have not updated, making them easy targets. It’s like leaving your front door open for four years and wondering why you keep losing snacks.

Hot Take:
Apparently, the only thing more persistent than Salt Typhoon’s cyber attacks is the universal procrastination to patch vulnerabilities. It’s like ignoring an umbrella in a rainstorm because you don’t feel like opening it. Come on, people, it’s time to batten down the digital hatches!
Key Points:
- Salt Typhoon is exploiting a vulnerability in Microsoft Exchange Server known as ProxyLogon, which has had a patch available for nearly four years.
- A staggering 91% of Exchange Server instances remain unpatched, leaving them vulnerable to attacks.
- Salt Typhoon, linked to the Chinese government, uses custom malware to maintain a stealthy foothold in victim networks.
- While other vulnerabilities have seen remediation rates over 92%, ProxyLogon languishes unpatched.
- US lawmakers are increasingly concerned about Chinese cyber intrusions, labeling China as a major cyber adversary.
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