In a security advisory, the company warned of a loophole that could be used by malicious hackers to steal private information or hijack computers.

The bug potentially affects every user of the Internet Explorer web browser - around 900 million people worldwide.

Microsoft has issued a software patch to defend against attacks, and said it was working to develop a long-term fix.

The security advisory, which was published on Friday, details how the vulnerability can be used to manipulate users and take over their machines.

More: http://www.bbc.co.uk/news/technology-12325139

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