The lesson I have learnt in this thread is that we should endeavor to diversify our coin into different wallet, sothat when things like this happen and you are mandated under gun point to reveal your secret phrase, you will just give them access to the wallet that has little amount while the wallet with huge Bitcoin will not be tampered.
Honestly when it come that one person have such amount of Bitcoin the best thing is to diversify into a different wallet for the safety, and then keep the all the secret phrase in a place that will be only to access to it to avoid scam from unknown people. If to say the person applied the same method as you explain earlier i think it will only lose a little amount of bitcoin, and after a while they can settle down and arrange their wallets back in a normal way.
Secondly don't make yourself known to the public that you have Bitcoin in your possession or revealing any kind of Bitcoin identity. Sometimes we think we are safe but don't know that our speach when we are with people outside are been targeted. The most important thing is that we should be security conscious in terms of our Bitcoin holding because when your secret is open to others, it raise a threat to your security system.
There’s some of the people that don’t care about their privacy and that’s why such things happen to them, and this life we’re living in now not everybody we will be telling our secrets. Because we don’t know who is throughly want celebrity our success, so in this case be a security conscious has been very important for each everyone not only in terms of hold a Bitcoin; but everything concerns a big amount of money.