A group of hackers called the GSTs or Greek Security Team has claimed responsibility for the breach. The hackers signed off their message with the words: We are 2600 dont mess with us According to media reports, hackers had already begun uploading unauthorised files to the website. With the huge amount of interest worldwide in the LHC the thought that hackers were able to compromise and change data on a read more in my article on the Naked Security website.”]
Source: https://grahamcluley.com/hackers-strike-large-hadron-collider-website/