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Researchers jailbreak a Tesla to get free in-car feature upgrades
(techcrunch.com)
This is a most excellent place for technology news and articles.
Kind of like adding a little chip to the charger cable of a cellphone that identifies the charger as a brand cable and without that chip, the phone won't charge or use the perfectly good cable for data transfer. If that sounds familiar, it's because that's what Apple did/does.
E: fixed autocorrect