On Monday, an ISIS-associated hacker group named Cyber Caliphate Army (CCA) announced their plans to hack Google. Unfortunately for them, they mistook Add Google Online, an Indian SEO company, for the search giant.
A second hacker group, n3far1ous, then re-hacked the same website, erasing all Islamic State imagery, and leaving the message "Eat this ISIS." It's still there and pretty funny.
Read more here: https://www.rt.com/news/334261-isis-hackers-down-google/