If true, that's interesting.
No firmware has been updated without my explicitly applying the firmware upgrade since I received the product in 2013.
The only time firmware was auto updated was when I initially installed the product and used the web portal.
And immediately afterwards, I disabled auto update. Obitalk provisioning is set to "periodically" in my ATA.
In at least one instance, I didn't update firmware for 4 months after a new firmware release.