The issue focused on Microsoft Windows software systems used by IBM PCs and Macintosh computers. One PC computer uses Unix software called GNU/Linux. Another PC computer runs OS X software called FreeBSD. While IBM laptops run IBM desktop operating systems like Linux or Solaris, MacBook computers run IBM laptop computers running IBM desktop operating systems such as Linux or Solaris. The hackers targeted servers where IBM servers store passwords for databases that IBM monitors and monitors machines using passwords stored in IBM laptops and routers connected to IBM servers. IBM Computer technicians installed