John Deere, an American agricultural machinery manufacturer, has recently enraged many farmers and digital rights activists due to the restrictive fixing policy of its tractors. Now, an Australian white hat hacker named Sick Codes has demonstrated not only how he was able to jailbreak the company’s tractors and run Doom on them (because why not) - but also hack into its global operations center, demonstrating how hackers can easily take over a huge number of farming machines all over the world.