WannaCry? Hundreds of US schools still haven’t patched servers


Enlarge / School IT is old school. And still vulnerable to EternalBlue. (credit: PhotoAlto / Frederic Cirou / Getty Images)

If you’re wondering why ransomware continues to be such a problem for state and local governments and other public institutions, all you have to do to get an answer is poke around the Internet a little. Publicly accessible security-scan data shows that many public organizations have failed to do more than put a bandage over long-standing system vulnerabilities that, if successfully exploited, could bring their operations to a standstill.

While the method by which RobbinHood ransomware infected the network of Baltimore City two weeks ago is still unknown, insiders within city government have pointed to the incomplete efforts by the Office of Information Technology to get a handle on the city’s tangle of software, aging servers, and wide-flung network infrastructure. Baltimore isn’t even the only city to have been hit by ransomware in the last month—Lynn, Massachusetts, and Cartersville, Georgia, both had electronic payment systems taken offline by ransomware this month. Greenville, North Carolina, was struck by the same RobbinHood ransomware affecting Baltimore in April.

But cities aren’t the only highly vulnerable targets to be found by would-be attackers. There are hundreds of thousands of Internet-connected Windows systems in the United States that still appear to be vulnerable to an exploit of Microsoft Windows’ Server Message Block version 1 (SMB v. 1) file sharing protocol, despite repeated public warnings to patch systems following the worldwide outbreak of the WannaCry cryptographic malware two years ago. And based on data from the Shodan search engine and other public sources, hundreds of them—if not thousands—are servers in use at US public school systems.

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