Users of Sophos on supported or unsupported machines will currently be seeing a warning message when they visit pages within the University of York website. The message states that "Access has been blocked to "www.google-analytics.com/ga.js" as 'Mal/HTMLGen-A' has been found at this website."
This message is being generated because Sophos's automatic systems have mistakenly blocked content at google-analytics.com, which is used on the University of York's website to analyse web traffic. More information can be found at:
http://www.sophos.com/support/knowledgebase/article/113714.html.
A fix is being applied by Sophos, and the problem does not prevent access to the website.