Quadriga CEO Said Back In 2014 He Kept Crypto Wallet Keys In Safety Deposit Box
While Cotten, who last resided in Halifax, may have changed his procedures over the years, back in 2014 he was a big fan of protecting cryptocurrencies with a very low-tech solution: paper.
"The paper wallet is a great way to store your Bitcoins. Basically, all you need to send Bitcoins is your private key, which is a string of, a ton of numbers and letters," he said. “The best way to do it is take your private key, print it off, store it offline in your safety deposit box, vault, whatever, and then take the public key, which is your address, and use that to send money to it. So that way you can never have your Bitcoin stolen, unless someone, like, breaks into the bank, steals your safety deposit box and gets into your private key and so forth.”
Given that Cotten filed a will just 10 days before his death, one would think that he would at least leave instructions regarding how his customers' coins could be retrieved.
https://www.zerohedge.com/news/2019-02-15/quadriga-ceo-said-back-2014-he-kept-crypto-wallet-keys-safety-deposit-box