In 2010, George Hotz used encryption research from the failOverflow team to gain access to the Sony PlayStation 3's hypervisor. Sony released a mandatory firmware update to prevent players from using Hotz's tool, and Hotz countered with custom firmware and root keys to the console. Sony then sued Hotz and failOverflow, seeking to impound his "tools of circumvention." Sony also subpoenaed some of his online accounts and demanded to know the identities of everyone who had accessed his website or YouTube videos while the jailbreak was posted.
Eventually, Sony dropped its case, but "only after Hotz promised not to hack any Sony products, discuss hacking Sony products, or link to any research related to hacking Sony products."