I have always thought, and said, that keeping a low profile (no matter how many millions we have) not only speaks positively about us as people, but is also a smart way to maintain our privacy and that of our families. Otherwise we could face situations like this, also putting our families in danger. This news reminds me of a YouTuber (I think it was a Russian guy) who showed large amounts of cash in his videos every day, until one day he was found dead in his house.
Privacy is everything.