Yeah, I do know about that but there is also this phenomenon, I think its called observers bias, and I think it applies here, sure there have been great security breaches in microsoft but they are only known so well cuz u dont check chinese news!, or for that matter you may not even see small company’s security breaches on the general page of an english news site, microsoft is ubiquitous, no matter where you live or weather you follow the news or not, if there is a security breach at microsoft you will know it