A survey for Reuters by security ratings firm BitSight found, two-thirds of those caught up in the past week’s global ransomware attack were running Microsoft’s Windows 7 operating system without the latest security updates.
Believing that identifying “patient zero” could help catch its criminal authors, researchers are struggling to try to find early traces of WannaCry. It remains an active threat in hardest-hit China and Russia.
They are having more luck dissecting flaws that limited its spread.
Security experts warn that while computers at more than 300,000 internet addresses were hit by the ransomware strain, further attacks that fix weaknesses in WannaCry will follow that hit larger numbers of users. Consequences will be more devastating.
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