| If you would prefer to receive this email as text only, please follow this link. Sophos enews: the newswire which brings you up-to-the-minute reports on virus, spyware and spam issues, new Sophos products and enhancements. Malware exploits critical unpatched security hole in Adobe PDFs readers
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Adobe has issued a security alert after a critical zero-day vulnerability was discovered in their popular PDF reading program which can allow hackers to take control of computers. The risk is that hackers could deliberately construct a malformed PDF file that would trigger the vulnerability, allowing them to open a backdoor and run malicious code on your computer. Sophos reports on the risks, and details how you can proactively protect your computers.
http://www.sophos.com/blogs/gc/g/2009/02/20/critical-security-hole-adobe-acrobat-pdf-readers
http://www.sophos.com/security/blog/2009/02/3267.html Rogue Facebook application bombards users with bogus messages
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Sophos has issued a warning about a third-party Facebook application that has been spreading in a "viral" manner via the social network. The "Error Check System" application sends misleading notifications to users' friends and family telling them there is a problem with their profile, in an attempt to gain more users. Learn more about the threat, and make sure that your users are taking care over what they do on Facebook.
http://www.sophos.com/blogs/gc/g/2009/02/23/beware-error-check-system-facebook-application
http://www.sophos.com/blogs/gc/g/2009/02/23/sting-tail-error-check-system Have you patched Internet Explorer 7 yet?
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Earlier this month Microsoft released a critical security patch for Internet Explorer 7. Sophos has seen evidence that the vulnerability is being exploited by hackers who have planted malicious code on webpages. Learn more about the threat, and make sure that your systems are properly defended.
http://www.sophos.com/blogs/gc/g/2009/02/18/patched-internet-explorer-7
http://www.sophos.com/security/blog/2009/02/3251.html Vote for your favorite security blogs
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If you find Sophos's blogs and podcasts useful, informative and entertaining, why not vote for them in the Social Security Awards to be revealed at the RSA Conference in San Francisco? You could be helping spread the word and raising awareness of security issues! Find out more before the closing date at the end of March.
http://www.sophos.com/blogs/gc/g/2009/02/23/vote-favourite-security-blogs Last chance to win a Sophos goody-bag!
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You still have a few days left in which you can win various goodies by taking part in our brief social networking survey. Learn more about the prizes and take part in our quick poll which aims to find out how you manage the likes of Facebook, Twitter and other sites in the workplace.
http://www.sophos.com/blogs/gc/g/2009/02/16/win-sophos-goodybag-completing-quick-survey Follow Sophos security experts on Twitter!
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Want to follow our experts on Twitter? Just follow these links and join Graham Cluley and SophosLabs in conversation about the latest threats. Just a couple of clicks is all it takes to follow us.
http://www.twitter.com/gcluley
http://www.twitter.com/sophoslabs | 
