Critical vulnerabilities in commonly used web code spark rush to update systems

Crucial vulnerabilities in a programming language that underpins much of the internet are so severe that European and British authorities have recommended websites temporarily go offline until they can be fixed.
Several websites were temporarily down as of Wednesday morning, citing fear that hackers could take them over. Those include Pinboard, a bookmarking site, and some parts of Wikipedia .
Japanese websites are also voluntarily offline, including systems for daycare centers and video games, the Japanese tech news site ITmedia reported .
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