Baka420

Baka420  is a   and. It garnered media attention when it defaced the controversial forum website ShedForum in 2015, an act of virtual vandalism that led to the arrests of three college students. In would later claim responsibilty for hacking Luxpad in 2017 and the larger-scale 2018 Boxread hack. The group has also been responsible for vandalizing several articles across wikis.

The group's name is a combination the Japanese word baka and the cannabis slang term "". The group was known for its inclusion of trendy Internet memes in its defacement of websites.