The vulnerability patched in 2017 is still breaching enterprises in 2026
By Kesavardhanan Jayaraman, Founder and CEO, K7 CyberSecurity
Britain’s National Health Service (NHS) is one of the world’s largest publicly funded universal healthcare systems, serving an average of 1 million patients every 36 hours, with an annual budget of more than $200 billion. On May 12, 2017, computers across the UK’s NHS began freezing as the WannaCry ransomware attack rapidly spread, infecting more than 200,000 machines across over 150 countries within hours. At least 19,000 NHS appointments and procedures were cancelled; emergency departments turned patients away, and ambulances were diverted to other hospitals. But the most uncomfortable detail emerged later, after the investigation. Just 59 days before the outbreak, Microsoft had released a fix in its security bulletin MS17-010, but none of the 80 NHS organisations affected had applied it.
Almost a decade later, the lesson has not been learned. The same exploit families, MS17-010 and EternalBlue, are still behind...
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