Update (4:23 CET, Monday, May 15th): We are now seeing more than 213,000 detections of WannaCry, in 112 countries.
We have observed a massive peak in WannaCry (aka WCry) ransomware attacks today, with more than 57,000 detections, so far. According to our data, the ransomware is mainly being targeted to Russia, Ukraine and Taiwan, but the ransomware has successfully infected major institutions, like hospitals across England and Spanish telecommunications company, Telefonica.