In 17th years history of crypto, there were many cases where crypto assets were lost due to death of people who controlled private keys. The most famous and catastrophic case of cryptocurrency lost due to the sudden death of a key controller is the collapse of QuadrigaCX, Canada’s largest cryptocurrency exchange at the time.
The Event: In December 2018, 30-year-old Gerald Cotten—the founder and CEO of QuadrigaCX—died unexpectedly from complications of Crohn's disease while traveling in India.
The Missing Keys: Cotten had operated the entire platform as a sole proprietor from an encrypted laptop, retaining exclusive control over the private keys needed to access the offline cold wallets.
The Impact: Approximately CAD $190 million (roughly USD $145 million) in customer digital assets and cash were frozen and rendered completely inaccessible.
Why Sudden Death is Final in Crypto
-No Central Authority: Decentralized blockchains have no customer service desk, password reset feature, or legal override.
-The Power of the Private Key: If a self-custody wallet holder or sole administrator dies without sharing their recovery seed phrase or private keys, the funds remain permanently locked on the ledger.
-Broader Scope: Blockchain analytics firm Chainalysis estimates that nearly 20% of all existing Bitcoin is permanently lost or stranded, a significant portion of which is attributed to early adopters or investors dying without a digital estate plan.
A simple and secure way to pass your crypto assets to your family/children is to teach them this method: https://www.publish0x.com/simple-solutions-to-complex-problems/a-simple-and-secure-way-to-manage-recoveriesbackups-of-up-to-xeomdyr and use the following procedure:
1. Create crypto wallets using the method described in the link above and transfer your crypto assets to these wallets. Teach your family/children how to use this method, but do not reveal to them “keys”, “dates”, and “salts” used by you.
2. In your “Will” (a legal document that dictates how your property and assets are distributed after your death) include the “keys” and “dates”, which were used to generate seeds for your crypto wallets. Give the “Will” to your lawyer and ask her/him to put it in a safe deposit box.
3. Keep the “salt” in a safe deposit box located in your home.
Now, neither your children/family neither your lawyer can recover your seeds, because they do not poses all the pieces required. To break this system an intruder needs:
1) break into your lawyer office;
2) open the safety deposit box in your lawyer’s office;
3) break into your home;
4) open the safety deposit box in your home.
To make this break even more complex you can use private DPGs instead of public DPGs. In this case, even if the attacker will be able to accomplish the 4 breaks above then she/he will not know where and which private DPGs to use.
