Ladies and Gentlemen, update your PDF readers..

Last month we warned you about a critical zero-day vulnerability in the ubiquitous Adobe PDF Reader that was being exploited by hackers to infect computers.

The risk is that hackers could craft a malformed PDF file that could trigger the vulnerability, allowing them to open a backdoor and run malware on your computer. Using this technique it would be simple cor cybercriminals to spam out a PDF file that would infect your PC, or plant malicious PDF content on a website.

There was concern at the time the vulnerability was discovered that Adobe said they would not be rolling out a patch until March 11th, as we had already seen the exploit being used.

So, it’s with some relief that we can now confirm that Adobe has issued an update which reportedly fixes the vulnerability. Windows and Apple Mac users can read more and download Adobe Reader 9.1 from…

Read more in my article on the Naked Security website.

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Graham Cluley is a veteran of the anti-virus industry having worked for a number of security companies since the early 1990s when he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows. Now an independent security analyst, he regularly makes media appearances and is an international public speaker on the topic of computer security, hackers, and online privacy. Follow him on Twitter at @gcluley, on Mastodon at @[email protected], or drop him an email.