Adobe rolls out emergency update to counter ransomware threat

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Adobe has released an emergency update to its Flash Player after security researchers discovered a bug that allows attackers to take over and then crash users' machines.

In a statement, Adobe called the flaw a "critical vulnerability" and urged users to update as soon as possible.

Proofpoint, a computer security firm, was one of three researchers to identify the flaw, which allows ransomware to be installed on computers that visit an infected website.

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