<p>Microsoft has pulled a security update for Exchange 2013 after problems emerged with the latest patch to the email server software just hours after its release.</p><p>The critical MS13-061 security update for Exchange Server 2013 broke the message index service, preventing Exchange 2013 email users from searching their mailboxes. Specifically, after the installation of the security update, the Content Index for mailbox databases shows as Failed and the Microsoft Exchange Search Host Controller service is renamed.</p><p>Sysadmins who have already installed the faulty patch on Exchange 2013 servers need to apply a workaround, which involves editing of registry keys.</p><p>Wolfgang Kandek, CTO of cloud security firm Qualys, reckons resolving both glitches will be fairly simple, so an updated patch can be expected soon. A post on the Microsoft Exchange blog puts the problems down to shortcomings in Redmond's testing process.</p><p><a href="http://www.theregister.co.uk/2013/08/15/faulty_exchange_2013_update_pulled/">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.informationweek.com/security/management/microsoft-pulls-exchange-server-security/240160034">Microsoft Pulls Exchange Server Security Patch</a> (InformationWeek)</p><p><a href="http://www.zdnet.com/microsoft-pulls-buggy-exchange-server-patch-ms13-061-7000019422/">Microsoft pulls buggy Exchange Server patch</a> (ZDNet (blog))</p><p><a href="http://www.geeky-gadgets.com/microsoft-exchange-2013-patch-pulled-hours-after-release-15-08-2013/">Microsoft Exchange 2013 Patch Pulled Hours After Release</a> (Geeky gadgets)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=daEGhRxWqRAuYJMwxcgtFyRgPI_QM&ned=us">20 additional articles.</a></p>