Part of the CustodyStress archive of observed Bitcoin custody incidents
Legal Proceedings — Vendor Lockout
Cases where legal action was the primary recovery path pursued after a platform locked, froze, or lost access to holder funds. Includes civil proceedings, regulatory complaints, and court orders directed at exchanges or custodians.
Legal proceedings as a recovery path results in a blocked or unresolved outcome in 67% of determinate cases. The path is slow, expensive, and depends on jurisdiction — and even successful legal proceedings do not guarantee technical access to funds.
Archive analysis — 13 cases
Outcomes
67% of determinate cases resulted in blocked access, close to the archive-wide average of 69%. Only 0% resulted in recovered access — one of the lower survival rates in the archive. 33% resulted in constrained recovery.
Recovery path
Legal Proceedings is the most documented recovery path (13 cases, 100% of subset). Of those with a determinate outcome, 33% resulted in recovered or constrained access.
Documentation
92% of cases had present and interpretable documentation — yet still produced a blocked or constrained outcome.
Scale
23% of cases involved large or very large holdings (10+ BTC).
Structural dependency
100% of cases carry a institutional cooperation required dependency tag — the most common structural factor in this subset.
8
Blocked
4
Constrained
0
Survived
1
Indeterminate
100% of determinate cases resulted in blocked or constrained access.
13 observed cases
Blocked
8 (62%)
Constrained
4 (31%)
Indeterminate
1 (8%)
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
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
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
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
MtGox Civil Rehabilitation Claims Process: Password Reset Barrier
Exchange custody
Following the MtGox collapse, Japan's civil rehabilitation framework opened a formal claims process to distribute recovered assets to affected users. However, a
Mt. Gox Exchange Collapse: 850,000 BTC Lost, 127,000 Creditors Locked Out
Exchange custody
Mt. Gox operated as the dominant Bitcoin exchange in early 2014, processing over 70% of global Bitcoin transactions. On February 7, 2014, the platform abruptly
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
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
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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