https://www.sfchronicle.com/crime/article/sf-cryptocurrency-robbery-21203804.php
1) get and train with a firearm. If you live somewhere that isn’t allowed, then move.
2) stop using mainstream social media, never post pictures about your finance, bitcoin, location, etc.
3) never let strangers in your home, don’t even open the door a crack
4) get a dog that isn’t tiny
5) get a security system
6) your Bitcoin setup should never allow you to move large funds quickly, e.g. only have access to small amounts at home