Security improvements should be a welcome addition to all software, but if they are not also simultaneously backported into its older and still supported versions, they can put many users at risk.
According to Google Project Zero researcher Mateusz Jurczyk, Microsoft is leaving a huge number of users open to attack by failing to pushing out security fixes for Windows 7, 8 and 10 at the same time.
All these Windows version are under active support – Windows 7 should receive security fixes until January 2020, and Windows 8.1 until January 2023. As a matter of fact, Windows 7 still has a nearly 50% share on the desktop market.
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