Being your own bank has it's downsides, one of which is physical attack.
This problem has existed at all times: any property owner (crypto) must be ready to protect his wealth.
Therefore, "
Being your own bank" means to be prepared to bear responsibility for the safety and security of crypto.
I have always believed that not all users of cryptocurrencies will be ready for this and therefore, custodial services for storing crypto assets will be in demand.
Are you prepared for such event ?
Preparing for such events is equivalent to ensuring the safety of your home, that is, the impossibility of unauthorized entry of unauthorized persons into your home, video recording cameras, an alarm button to call the security service, personal protective equipment to repel robbers. The choice of specific ones is optional and individual.
It is always easier to prevent than to fix a problem. If this guy was deliberately approached to take away cryptocurrencies, it means he himself made a mistake and attracted the attention of the attackers. Therefore, the best way to avoid a $5 wrench attack is not to advertise your crypto assets.
And of course, diversification. Why was it necessary to store 1000 ETH in one wallet?