https://www.microsoft.com/en-us/security/blog/2017/05/12/wannacrypt-ransomware-worm-targets-out-of-date-systems/?source=mmpc
WannaCrypt ransomware worm targets out-of-date systems | Microsoft Security Blog
Dec 8, 2025 - In this blog, we provide an early analysis of the end-to-end ransomware attack. Please note this threat is still under investigation.
out of datewannacrypt ransomwaremicrosoft securitywormtargets