Downgrade attacks open patched systems to malware

A new report by the former SafeBreach researcher Alon Leviev is raising alarms about the risks posed by downgrade attacks on Microsoft Windows. In a blog post, Leviev, who now works for Microsoft, explained that his latest bypass could allow a malicious actor to load unsigned kernel drivers on a fully patched Windows system. Those could then be used to disable security features, deploy and disguise malicious code and processes, and so on. 

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