I like Hikaru, though I find GothamChess easier to watch, and more to my level. Also helps he is absolutely excellent in maintaining viewer attention. He is an excellent story teller.
If you question whether your electronic device is compromised, it probably is.
If you question if your electronic device has exploitable vurnabilities, the answer is absolutely yes.
Don't store private info on your electronics, if you can't handle them leaking. (Nude photos, bank credentials)
Commercial VPNs are not as useful and secure as you think.
I personally cover the front facing cameras on my laptop and mobile, on the assumption that if someone were to gain access to my phone, that's the first thing they would look at.
Don't connect to random public WiFi. If you do, don't login to any online account on it, or send confidential information.
Can't help but notice that no timeframe was published. How long was the exercise? A month? A week? A day?
In any-case, whether the problems plaguing the Puma are fixable by retrofitting, or if a new design all together is necessary, is a real question with some effects to note.
After all, replacing electronic parts is completely different from replacing key mechanical systems or even sections of the hull.