What is PHP, and how bad is the computer language flaw causing website shutdowns globally?

Websites across the world have been taken offline in the past day as governments and businesses work to patch newly discovered vulnerabilities in PHP, a programming language that underpins much of the internet. The exposed flaw would have allowed hackers to carry out cyber-attacks. This widespread issue is significant because PHP is used by an estimated 70% of websites, making it a crucial component of the global online infrastructure. If left unpatched, this vulnerability could have led to widespread cyber-attacks and potential data breaches.

Why it matters

A flaw in the PHP computer language is causing website shutdowns globally, affecting an estimated 70% of websites. This could lead to significant disruptions and economic losses.

Market impact

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Likely winners & losers

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