cyrpto currency by nature is so easy to steal if someone has access to the right things,
This is like saying your house by nature is easy to break into if you give someone the keys. That is not the nature of Bitcoin, it just means if you give up what signifies access to something, you've handed over that access to someone else.
You are right then. Not your keys, not your coins. Bitcoin investors should not only focus on accumulating bitcoin but first and foremost, they should always ensure the security of their coins. If the guy in the story values much about privacy and not giving access to anyone relating to his bitcoins, then he should have hold them until now. But ignorance kills everything. Gone are the hard-earned bitcoins in just a single wrong decison.
This may serve a lesson not just for bitcoin investors but definitely for all those who are into different investments. If you can’t secure your investment 100%, then don’t bother investing in the first place.