A newly discovered hardware exploit allows for the execution of arbitrary code on devices powered by Nvidia's Tegra processors. This includes Nintendo's wildly popular Switch, which has been under the scope of several hacking groups this past year. The new exploit functions at the boot level and is claimed to be "unpatchable."
https://www.notebookcheck.net/New-method-of-hacking-Nintendo-s-Switch-claims-to-be-unpatchable.300968.0.html