There has been a growing realization by the global cyber security community that cybercriminals of all shapes, sizes, and motivations are getting a lot better at finding and exploiting zero-day attacks. Furthermore, while the bulk of these attacks still target the Microsoft family of operating systems, increasingly attacks are being targeted at the Unix/Linux family of operating systems. Correspondingly, there is also more recent awareness of the extent of Advanced Persistent Threat (APT) rootkits that were also previously unknown. So, many are asking what is the source of this very worrisome increase in sophisticated cyber attacks?

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