I've recently been experiencing a situation as follows:
How can I understand the IO of an unknown device?
Say, for example, I am gifted a bluetooth speaker. How can I understand its potential for transmission? If it claims to be just a bluetooth speaker, can I verify that it does not also record and transmit audio?
If there is e.g a blackbox device, what are the ways that we can confirm beyond doubt the safety of transmission?
(software and hardware considered)
