Members of NullCrew recently claimed to have breached the University of Cambridge.

"NullCrew, a group associated with Anonymous, claimed responsibility and said the hit was a continuation of attacks by Anonymous on government targets over efforts to extradite Wikileaks founder Julian Assange," writes TechWeekEurope's Peter Judge.

In a statement on Pastebin, the hackers wrote, "There is much more where this came from, and don't think this is the end. NullCrew, along with the whole Anonymous movement isn't near finished with you. And we never will be, until the right thing is done with Julian Assange. Next time it will be worse, we guarantee it."

"The information published by the hackers appears to include 17 login details of academics in the Centre for Research in the Arts, Social Sciences and Humanities," writes The Independent's Ben Kendall. "Others believed to be targeted were the Sector of Biological and Soft Systems, the Department of Chemical Engineering and Biotechnology and the Centre for Applied Research in Educational Technologies."

"At least one of the attacks was carried out via an SQL injection, a method which involves writing to a database through an unprotected form on a website, such as a search bar," writes The Tab's Sebastian Salek. "This gives hackers control of the database, allowing them to return information stored in it or even delete it entirely."