Part of the CustodyStress archive of observed Bitcoin custody incidents
Legal Authority Required — Vendor Lockout
Cases where completing recovery required formal legal standing — probate, power of attorney, or court authorization — creating a gap between entitlement and access. This page shows archive cases where both conditions were present.
19% of all Vendor Lockout cases in the archive involve this structural dependency. Among them, 57% of determinate cases resulted in a blocked outcome. The most common recovery path is legal proceedings.
20
Blocked
15
Constrained
0
Survived
1
Indeterminate
100% of determinate cases resulted in blocked or constrained access.
36 observed cases
Blocked
20 (56%)
Constrained
15 (42%)
Indeterminate
1 (3%)
GDAC Exchange Security Breach: $13M Cryptocurrency Theft, April 2023
Exchange custody
On April 9–10, 2023, GDAC, a South Korean cryptocurrency exchange, discovered a security breach affecting its hot wallet infrastructure. Attackers transferred a
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 $
FTX Exchange Collapse Freezes 1+ Million Customer Accounts — November 2022
Exchange custody
FTX, founded in 2019 by Sam Bankman-Fried, was valued at $32 billion at its peak and operated as one of the world's largest cryptocurrency exchanges. On Novembe
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
Genesis Global Capital Freezes $900M in Gemini Earn Bitcoin — Retail Users Locked Out
Exchange custody
Throughout 2022, Genesis Global Capital—the cryptocurrency lending subsidiary of Digital Currency Group—accumulated exposure to failing counterparties and deter
Einstein Exchange Vancouver: $16M CAD Claimed Liabilities, Insolvent Collapse 2019
Exchange custody
Einstein Exchange, a Vancouver-based cryptocurrency platform founded by Michael Ongun Gokturk, marketed itself as Canada's fastest-growing digital currency exch
QuadrigaCX Exchange Collapse (April 2019): Mass Custody Loss
Exchange custody
QuadrigaCX, founded in 2013 and one of Canada's largest cryptocurrency exchanges, ceased operations on April 15, 2019, with approximately 115,000 users unable t
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
BitGrail Exchange Collapse: 17 Million NANO Stolen, 230,000 Users Frozen
Exchange custody
BitGrail, an Italian cryptocurrency exchange, announced on February 8, 2018 that approximately 17 million NANO tokens—valued at roughly $170 million at the time
QuadrigaCX Exchange Collapse: C$100,000 Withdrawal Never Processed
Exchange custody
Eric Z., a QuadrigaCX customer, deposited C$5,000 into the Canadian cryptocurrency exchange around 2014 and grew his position to approximately C$125,000 through
Xitong Zou: QuadrigaCX Creditor During Exchange Collapse and Fraud
Exchange custody
Xitong Zou was a customer of QuadrigaCX, a Canadian cryptocurrency exchange that collapsed in late 2018. Like thousands of other users, Zou had cryptocurrency h
Cointed GmbH Exchange Collapse: Austria, 2018 — Customer Funds Disappeared
Exchange custody
Cointed GmbH, founded in 2016 in Kufstein, Austria, operated as a regional cryptocurrency powerhouse: a custodial exchange, mining operation, and operator of on
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
Zaif Exchange Hack: 5,966 BTC Stolen, User Funds Frozen (September 2018)
Exchange custody
On September 14, 2018, the Zaif cryptocurrency exchange operated by Tech Bureau Corp suffered a significant hot wallet breach. Attackers gained unauthorized acc
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: 13,000 BTC Theft Concealed, Ponzi Operations, Founder Flight (2014–2016)
Exchange custody
Cryptsy, a Florida-based cryptocurrency exchange operated by Paul Vernon (online alias 'Big Vern'), suffered a critical security breach in July 2014 when attack
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
Vircurex Withdrawal Freeze: Timothy Shaw's 12.85 BTC Locked Since 2014
Exchange custody
Timothy Shaw, a Colorado resident, executed a trade on Vircurex on March 24, 2014, converting his entire dogecoin balance into 12.85 BTC. That same morning, Vir
Digital CC v. igot Exchange: $180,000 Bitcoin Claim, Australian Court Action
Exchange custody
Digital CC, an Australian digital currency company, accumulated approximately $180,000 in Bitcoin holdings or claims held on the igot exchange. Beginning in 201
MintPal/Moolah Exchange Collapse: 3,700 BTC Inaccessible After Ryan Kennedy's Exit Scam
Exchange custody
MintPal was a prominent altcoin exchange serving tens of thousands of users in 2014. Following a July 2014 hack that cost approximately $2 million in VeriCoin,
Institutional lockout — exchange custody, Australia (2015)
Exchange custody
igot, an Australian Bitcoin exchange operated by Remi Fabre under the digital.cc domain, entered a state of operational dysfunction beginning in August 2015. Us
Otohs: 76 BTC Withdrawal Request Refused by Insolvent Cryptsy (October 2015)
Exchange custody
On October 5, 2015, a Reddit user identified as Otohs submitted a withdrawal request for 76 BTC from his verified Cryptsy account, which carried no withdrawal l
Institutional lockout — exchange custody, Australia (2015)
Exchange custody
In August 2015, the Australian Bitcoin exchange igot ceased all operations and communications, leaving customers unable to access their holdings or funds. Reddi
ThrillHou v. Cryptsy: Account Lockout, KYC Data Misuse, and Alleged Identity Compromise
Exchange custody
ThrillHou, a Cryptsy user, experienced repeated account lockouts beginning in 2015. When support staff operating under aliases BigJohn and John McPherson repeat
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