Microsoft said the threat posed by the purported weakness was not as great as Cylance supposed.
"Several factors would need to converge for a 'man-in-the-middle' cyberattack to occur. Our guidance was updated in a Security Research and Defense blog in 2009, to help address potential threats of this nature," said Microsoft in an emailed statement. "There are also features in Windows, such as Extended Protection for Authentication, which enhances existing defenses for handling network connection credentials."
