(Reuters) - Private equity firm KKR &amp; Co said on Tuesday it would acquire a majority stake in cybersecurity company Optiv Security Inc, which is majority owned by Blackstone Group LP .<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=BAegC1hK4zg:HK8_W-qgktw:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=BAegC1hK4zg:HK8_W-qgktw:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=BAegC1hK4zg:HK8_W-qgktw:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=BAegC1hK4zg:HK8_W-qgktw:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=BAegC1hK4zg:HK8_W-qgktw:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/BAegC1hK4zg" height="1" width="1" alt="" />