How John Deere Hijacked Copyright Law To Keep You From Repairing Your Tractor

Companies such as John Deere require customers to purchase repair services exclusively from dealers and use software to prevent independent repairs. 

Haber Bülteni - iFixit

Farmers Fight John Deere Over Who Gets to Fix an $800,000 Tractor - Bloomberg

The debate over right to repair in 2022

US farmers win right to repair John Deere equipment

Podcasting “About Those Killswitched Ukrainian Tractors”, by Cory Doctorow

Remote bricking of Ukrainian tractors raises agriculture security concerns

Tractors vs. threat actors: How to hack a farm

Farmers Upset with John Deere Use Ukrainian Firmware Hacks

Farmers Are Having to Hack Their Own Tractors Just to Make Repairs