Digital exchange loses $137M as founder takes passwords to the grave
arstechnica.com
arstechnica.com
Pretty irresponsible to not store the encryption key in something like a bank safety deposit box or sharded across multiple people that don't know each but come together like in the event of a death to reconstruct the key.
1. Sudden death from Chron's disease is not unheard of https://www.ncbi.nlm.nih.gov/pubmed/9780667 but it's described as a "rare complication".
2. Where is the address of this cold storage so people can see the coins not moving since the alleged death? I know people are trying to figure out the address based on transactions from the hot wallet but if there is some tumbling involved it'll be hard / impossible.
3. In this 2015 article https://archive.is/Gw2x9
> Cotten, in turn, spoke to Quadriga’s security strengths, noting that the exchange uses multi-signature cold storage to secure bitcoin holdings.
This directly contradicts the claim only he had the key.