One week after the WannaCry attack, analysis of the data collected shows that the systems most affected by the malware were the Windows 7 and not Windows XP, according to security firm Kaspersky.
Specifically, over the 60% + 31% of the computers hit by WannaCry ran 64 or 32 bits (respectively) of the Windows 7 operating system.
Ironically, Windows 7 had to be safe against WannaCry, as Microsoft had released security patches since March of 2017. Also, we should not forget that the operating system is supposed to still be supported.
On the other hand, seeing Windows 7 as the most influenced operating system by WannaCry malware shows it makes sense. Because if you think it's the world's top PC operating system with a market share of almost 50% it seems to be the right percentage.
This means that almost 1 on 2 desktop systems run with Window 7.
It is also worth mentioning that Windows 7 is released in pirated versions copies in too many systems out there, especially in countries like China and the Russia, which still use non-genuine copies of the operating system.
This results in those using them not being able to update every month, while many users have blocked updates altogether to avoid checking for genuineness wrenches product.
Note that Windows 7 will continue to be supported by January of 2020, so genuine systems with this operating system will still receive updates for almost 3 years.
