Part of the CustodyStress archive of observed Bitcoin custody incidents
Legal Proceedings — Blocked
Cases where legal proceedings failed to restore access. Court orders and legal entitlement could not overcome the technical barrier — or the institutional target of the proceedings did not survive to comply.
15 cases in this intersection. 100% of determinate cases resulted in a blocked outcome. The most common recovery path is legal proceedings.
Archive analysis — 15 cases
Outcomes
100% of determinate cases resulted in blocked access — 31 percentage points above the archive-wide average of 69%. Only 0% resulted in recovered access — one of the lower survival rates in the archive.
Custody type
67% of cases involved exchange custody, followed by software wallet at 13%.
Primary stress condition
53% of cases involve vendor lockout. Device loss accounts for a further 13%.
Recovery path
Legal Proceedings is the most documented recovery path (15 cases, 100% of subset). Of those with a determinate outcome, 0% resulted in recovered or constrained access.
Documentation
87% of cases had present and interpretable documentation — yet still produced a blocked or constrained outcome.
Scale
20% of cases involved large or very large holdings (10+ BTC).
15
Blocked
0
Constrained
0
Survived
0
Indeterminate
100% of determinate cases resulted in blocked or constrained access.
15 observed cases
Blocked
15 (100%)
Astamur Ardzibna Shot Dead in Abkhazia Over Cryptocurrency Mining Operation
Unknown custody system
Astamur Ardzibna was fatally shot in October 2021 during an armed dispute over cryptocurrency mining operations in Abkhazia, the de facto independent territory
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
QuadrigaCX Exchange Collapse: CEO Death Blocks Access to $190M in Customer Cryptocurrency
Exchange custody
QuadrigaCX, founded in 2013 and operating as one of Canada's largest cryptocurrency exchanges, ceased operations in January 2019 following the death of CEO and
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
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
Kleiman Estate v. Craig Wright: Bitcoin Access Blocked by Knowledge Concentration
Unknown custody system
David Kleiman, a computer forensics expert in Palm Beach County, Florida, died in April 2013. His brother Ira Kleiman later alleged that David and Craig Steven
WEX.nz US Citizen Lockout: Recovered Funds Inaccessible Due to Geographic Verification Bar
Exchange custody
Following the July 2017 FBI seizure of BTC-e exchange assets, the platform's successor WEX.nz announced recovery of 55% of client Bitcoin holdings, with plans t
MtGox Withdrawal Halt and Bankruptcy: 400K Inheritance Permanently Blocked
Exchange custody
In 2014, the largest Bitcoin exchange at that time, MtGox, ceased Bitcoin withdrawals and subsequently filed for bankruptcy protection. A documented case emerge
Mt. Gox Exchange Collapse: Operator Theft and 650,000 Lost Customer Bitcoin
Exchange custody
Mt. Gox operated as the dominant Bitcoin-to-fiat exchange from 2010 to 2014, handling approximately 70% of global Bitcoin trading volume at its peak. The platfo
CoinLab vs. Mt. Gox: Partnership Collapse Traps North American Customer Bitcoin in Legal Limbo (May 2013)
Exchange custody
In 2012, Mt. Gox and CoinLab signed a partnership agreement under which CoinLab would assume management of Mt. Gox's US and Canadian customer operations, includ
James Howells and the Landfill Bitcoin: Device Lost, Recovery Legally Blocked
Software wallet
James Howells, a UK resident, discarded a hard drive containing an encrypted Bitcoin wallet during a routine office clearance in 2013. The device was disposed o
Dave Kleiman Estate vs. Craig Wright: 1.1 Million Bitcoin, Ownership Unresolved
Unknown custody system
Dave Kleiman, a computer forensics specialist based in Florida, was an early Bitcoin developer who died on April 26, 2013, after years of declining health follo
Intersango Exchange Collapse: 2000 BTC User Funds Retained by Operator — Norman v. Strateman
Exchange custody
Intersango, a UK-based Bitcoin exchange co-founded by Amir Taaki and Patrick Strateman, ceased operations in 2012 after losing its banking relationship. At the
James Howells' 7,500 Bitcoin: Hard Drive Lost in Newport Landfill
Software wallet
James Howells, a software engineer in Newport, South Wales, accidentally discarded a hard drive containing approximately 7,500 to 8,000 Bitcoin in the early 201
MtGox Exchange Collapse: 850,000 Bitcoin Custody Failure
Exchange custody
Mt. Gox, founded in 2006 and operating as a Bitcoin exchange from 2010, accumulated custody of approximately 850,000 Bitcoin belonging to its users by early 201
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