What happened is that Apple was attacked by hackers who infected Macintosh computers of some employees. It is not clear how this happened as employees at Apple are creative geniuses who bring about perfection. It has been suggested that Microsoft staff must have gained access to the building, installed PCs and then installed the malware.
Although some reports think say that the malware had been designed to attack Mac computers. This is unlikely as there is no malware for mac machines and reporter who says that is rightfully told that they are not proper journalists. What is more likely is that the software, which infected Macs exploited a flaw in a version of Java software used as a plug-in on Web browsers. So it was clearly not Apple’s fault at all. The malware was also employed in attacks against Mac computers used by "other companies," Apple said, without elaborating on the scale of the assault.
Investigations into the breaches are ongoing. It was not immediately clear when the attacks had begun, the extent to which the hackers had succeeded in stealing data from targeted systems, or whether all infected machines have been identified. Security firm F-Secure suggested that the attackers might have been trying to get access to the code for apps on smartphones, seeking a way to infect millions of end-users.