Microsoft says Russia-linked hackers exploiting Windows flaw

(Reuters) - Microsoft Corp said on Tuesday that a hacking group previously linked to the Russian government and U.S. political hacks is behind recent cyber attacks that exploit a newly discovered flaw in its Windows operating system. Microsoft said that a patch to defend Windows users against this sort of attack will be released on Nov. 8. The software maker said in an advisory on its website there had been a small number of attacks using "spear phishing" emails from a hacking group known Stront