KNOW THE LATEST TRENDS AND WHAT IT STIMULATES US AND MOTIVATES
This update has been made for all operating systems in support of Microsoft, from Windows Vista to Windows 10 in all the respective versions (1511, 1603, 1703).
Unfortunately, not all users and companies have automatic updates enabled for several reasons: compatibility, reliability, etc; And this fact has been exploited that this ransomware to propagate within the local networks.
Microsoft reacted in a few days took out the correction, but it seems that these updates have not arrived on time to many users and companies.
Anyway, it is also being announced that this news has taken a sensational and the real affect is not so much, but emergency measures to prevent damages taken by companies as Telefónica can have exaggerated its gravity.
On the case of Telefónica, there is an excellent description of what happened (in spanish), written by one of the security gurus in Spain, Chema Alonso at
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