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Undocumented Commands Found In Bluetooth Chip Manufactured in China Used By a Billion Devices.
(www.tarlogic.com)
This is a most excellent place for technology news and articles.
True, but the ESP32 is used by a lot of devices. This backdoor is pretty huge in scope of devices impacted.
It depends on what the method of attack is. I'm not seeing anything saying that it would be possible to exploit wirelessly, so this could easily be mostly a non-issue.