This morning customers that use the Sophos products weren’t able to get updates for a short spell. This was thanks to a “whoops” by one of the company’s ISPs.
From The Register:
Domain name system problems left some users of Sophos unable to get security updates on Friday. The same issue, blamed on a mistake by one of the security firm’s service providers rather than hostile action, left many surfers unable to access its main sophos.com website.
Graham Cluley, senior technology consultant at Sophos, explained that an error by one of its service providers in updating DNS settings for the Sophos.com site has permeated across the internet, and will take a little while to untangle. “Some users have experienced problems getting updates because of these incorrect settings,” he explained. “No kind of DNS cache poisoning or any kind of hacking attack was involved.”
I can well imagine that people were speculating about the possibility of a DNS attack. But, sometimes the correct answer really is the simplest one.