Last month, thousands of computers across the world were infected by a strain of ransomware known as WannaCry. Estimates show that this massive attack impacted over 300,000 computers across banks, hospitals, telecommunications services, train stations, and numerous other critical services. Months before this attack, Microsoft had released a patch of all Server Message Block (SMB) vulnerabilities, including EternalBlue, which researchers believe is one of the vulnerabilities that criminals exploited to carry out the attack. Despite the available patch, it appears that many companies neglected to install the critical update (MS17-010) from Microsoft prior to the attack.
Article Link: https://www.bitsighttech.com/blog/latest-bitsight-insights-explores-growing-risk-frequently-ignored-critical-updates