We first featured them in 2018, when Didi Taihuttu, along with his wife and three kids, liquidated all of their assets and bought bitcoin in 2017, back when it was trading at around $900. Now, the Dutch family of five is safeguarding most of their crypto fortune in secret vaults on four different continents.

Taihuttu has two hiding spots in Europe, another two in Asia, one in South America, and a sixth in Australia.

We aren’t talking buried treasure – none of the sites are below ground or on a remote island – but the family told CNBC the crypto stashes are hidden in different ways and in a variety of locations, ranging from rental apartments and friends’ homes to self-storage sites.

“I prefer to live in a decentralized world where I have the responsibility to protect my capital” said Taihuttu.