Part of the CustodyStress archive of observed Bitcoin custody incidents
Bankruptcy Claims — Vendor Lockout
Cases where holder funds were frozen following platform insolvency and recovery required filing claims through a formal bankruptcy or administration process. Mt. Gox, FTX, Celsius, and BlockFi cases are the primary contributors.
Among the 12 cases using this recovery path, 0% of determinate cases resulted in access restored and 42% resulted in a blocked outcome.
Archive analysis — 12 cases
Outcomes
42% of determinate cases resulted in blocked access — 27 percentage points below the archive-wide average of 69%. Only 0% resulted in recovered access — one of the lower survival rates in the archive. 58% resulted in constrained recovery.
Custody type
92% of cases involved exchange custody, followed by institutional custody at 8%.
Recovery path
Bankruptcy Claims Process is the most documented recovery path (12 cases, 100% of subset). Of those with a determinate outcome, 58% resulted in recovered or constrained access.
Documentation
83% of cases had present and interpretable documentation — yet still produced a blocked or constrained outcome.
Scale
50% of cases involved large or very large holdings (10+ BTC).
Geographic distribution
United States accounts for 33% of cases in this subset (4 of 12).
5
Blocked
7
Constrained
0
Survived
0
Indeterminate
100% of determinate cases resulted in blocked or constrained access.
12 observed cases
Blocked
5 (42%)
Constrained
7 (58%)
Celsius Network Freezes All Withdrawals: 1.7 Million Users Locked Out
Exchange custody
Celsius Network, a cryptocurrency lending platform founded by Alex Mashinsky, abruptly froze all customer withdrawals, swaps, and transfers on June 12, 2022, wi
Voyager Digital Freeze: 3.5M Users, $650M Loan Default, Chapter 11
Exchange custody
Voyager Digital, a cryptocurrency broker serving over 3.5 million active users, suspended all trading and withdrawals on July 1, 2022. The collapse followed a $
Three Arrows Capital Collapse: $10B Fund, $3.5B Frozen Claims, Founder Flight
Institutional custody
Three Arrows Capital, founded in 2012 by Zhu Su and Kyle Davies, operated as a cryptocurrency investment fund managing approximately $10 billion in assets throu
BlockFi Chapter 11: 100,000+ Creditors, $355M Crypto Frozen After FTX Collapse
Exchange custody
BlockFi, a centralized lending platform that accepted customer deposits of Bitcoin and other cryptocurrencies, announced a withdrawal halt on November 10, 2022,
Paxful Insolvency: Withdrawal Request Trapped in Administrative Limbo
Exchange custody
Paxful, a peer-to-peer Bitcoin marketplace, announced its closure between 2021 and 2022. One user failed to notice the shutdown notification amid email volume a
Cryptopia Exchange Hack and Liquidation: 960,000 Frozen Accounts, $400M Distributed Over 5 Years
Exchange custody
Cryptopia, a Christchurch-based cryptocurrency exchange serving 1.4 million registered users across approximately 900 trading pairs, suffered a critical securit
Elvis Cavalic and QuadrigaCX: C$15,000 Withdrawal Lost to Exchange Collapse
Exchange custody
Elvis Cavalic of Calgary, Alberta was an active QuadrigaCX customer who had accumulated cryptocurrency holdings through trading on the platform. In October 2018
Yapizon Exchange Hack (April 2017): 3,831 BTC Stolen, Socialised Loss Model Applied to All Users
Exchange custody
On April 22, 2017, Yapizon, a South Korean cryptocurrency exchange, suffered a security breach resulting in the theft of 3,831 BTC—approximately 37% of the exch
Youbit Exchange Bankruptcy: Second Hack Triggers 75% Fund Recovery Limit
Exchange custody
Youbit, operated by South Korean firm Yapian, experienced two significant security breaches during 2017. The first attack in April 2017 compromised approximatel
Cryptsy Exchange Insolvency: 2014 Hack Concealed Until 2015 Withdrawal Freeze
Exchange custody
Cryptsy, a Florida-registered multi-currency exchange founded in 2013, suffered a significant security breach in 2014 that compromised user Bitcoin and altcoin
Mt. Gox Exchange Collapse: 850,000 BTC Lost, 127,000 Creditors, 10-Year Recovery
Exchange custody
Mt. Gox operated as the world's primary Bitcoin exchange from 2006 onward, handling over 70% of global Bitcoin transaction volume at its peak. The platform func
Celsius Chapter 11: User Lost 1 BTC After Collateralized Loan Freeze
Exchange custody
A user took out a loan against Bitcoin held on Celsius Network, a custodial lending platform that offered yield and credit facilities. The user's Bitcoin served
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