Part of the CustodyStress archive of observed Bitcoin custody incidents
Total Device and Home Loss
Archive cases where the primary access device was lost or destroyed with no off-site backup available. Cases in this category typically involve loss of the device as the sole access point.
77% of determinate cases in this category resulted in a blocked outcome.
36
Blocked
0
Constrained
11
Survived
60
Indeterminate
77% of determinate cases resulted in blocked or constrained access.
107 observed cases
Blocked
36 (34%)
Survived
11 (10%)
Indeterminate
60 (56%)
10 BTC Gifted in 2011, Lost in Unrecoverable Hard Drive Crash
Software wallet
Greg received 10 bitcoin as a gift during the earliest phase of Bitcoin adoption, when the asset was trading around 10 cents per coin. The bitcoin was stored on
80 BTC Recovery After Hard Drive Format: Pywallet Raw Data Reconstruction
Software wallet
In December 2011, a BitcoinTalk user's friend experienced critical wallet inaccessibility when his computer crashed. The friend brought the machine to a technic
Wallet File Swap Causes Transaction Invisibility: Blockchain Index Desynchronization (2011)
Software wallet
Michael_S was running Bitcoin client version 0.3.19 on Ubuntu Linux in May 2011 and sought to improve security by splitting his holdings across two wallet.dat f
Fragmented Wallet.dat Recovery: Disk Image Mining Loss Without Backup
Software wallet
In 2011–2012, callerman used Bitcoin-QT to mine Bitcoin on a personal computer with limited technical knowledge of cryptocurrency infrastructure. Facing disk sp
1,000+ BTC from 2010: Lost USB Drive, Corrupted Hardware, Incomplete Seed Recovery
Software wallet
In 2010, theunionjack purchased over 1,000 Bitcoin at a fraction of a cent by creating two PGP keys using GPG4Win/Kleopatra and importing them into what he beli
Lost Bitcoin Mining Wallet on Decommissioned PC: Data Overwritten Beyond Recovery
Software wallet
In 2009 or 2010, rosnick92 and his father mined Bitcoin on a personal computer for several days, earning what he recalls as 'a few pennies per day'—an amount he
10,000 Bitcoin Lost When Laptop Discarded as Junk (2010)
Software wallet
In March or April 2010, while a final-year student at St. John's University in New York, an individual purchased 10,000 BTC from a local seller for approximatel
Early Bitcoin Client Wallet Partially Overwritten: File Recovery and Data Loss Analysis
Software wallet
In January 2010, furyo87 ran the Bitcoin client on a Windows machine for several days while experiencing stability issues. The user was uncertain whether any BT
1,000 BTC Lost to Repeated Hard Drive Formatting: Self-Custody Without Backup
Software wallet
In January 2017, a BitcoinTalk forum user identified as myBitcoin2009 posted a recovery request describing a custody loss rooted in the earliest era of Bitcoin
Deleted 2009-2010 Bitcoin Mining Wallet: Disk Overwrite and Recovery Failure
Software wallet
In December 2017, a BitcoinTalk user identified as idelcoins posted a detailed account of attempting to recover Bitcoin wallet files from hard disks containing
1000 BTC from 2009 Mining: Wallet Recovery After Hard Drive Reformat
Software wallet
The original poster ('unluckysoul') described losing access to approximately 1000 BTC generated during the earliest Bitcoin mining period using Bitcoin-Qt, the
Bitcoin Transfer Stalled Between Bither Wallets—Old Laptop to New, 3+ Months Unresolved
Software wallet
A caregiver assisted their friend (who has disability-related constraints preventing direct technical engagement) in attempting to consolidate Bitcoin holdings.
18 BTC Bitcoin-Qt Wallet.dat: Database Corruption and Filesystem Recovery
Software wallet
A Bitcoin holder possessed an early Bitcoin-Qt wallet file containing 18 BTC that had been abandoned for years after the wallet appeared corrupted. When Bitcoin
Hard Drive Discarded in Landfill: £4 Million Bitcoin Lost Without Backup
Software wallet
A UK individual reportedly discarded a hard drive containing Bitcoin assets valued at approximately £4 million GBP and subsequently attempted to locate and reco
50 BTC Lost After Accidental Hard Drive Format
Software wallet
A Bitcoin holder maintained a wallet file on a hard drive without maintaining a backup. The drive was formatted, destroying the wallet data, before the loss was
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
100 Bitcoin Lost on Discarded Flash Drive: Permanent Access Failure
Software wallet
During Bitcoin's early adoption phase, when the asset had negligible market value and was treated primarily as an experimental hobby, the original poster create
100 Bitcoin Lost to Discarded Flash Drive Without Backup
Software wallet
An early Bitcoin adopter stored approximately 100 bitcoins on a flash drive during Bitcoin's formative years, likely before 2013, when the asset carried minimal
30 BTC Destroyed in House Fire — Hardware Wallet Loss Without Backup
Hardware wallet (single key)
A Reddit forum user posted approximately six years ago that their neighbor had lost a hardware wallet containing 30 BTC in a house fire. The device was physical
Hard Drive Format Renders 300,000 Satoshis Permanently Inaccessible
Software wallet
An individual user accidentally formatted a hard drive containing 300,000 satoshis, equivalent to approximately $20 USD at the time of the incident. The wallet
Multibit Wallet Lost to Hard Drive Format Without Backup
Software wallet
In January 2015, a Multibit user experienced total loss of wallet access after formatting their hard drive due to computer problems. The user retained only an a
MultiBit Wallet Lost on Dead Hard Drive with No Backup Files
Software wallet
In September 2016, a South African user posted to Bitcoin Stack Exchange describing total loss of access to their MultiBit wallet following hard drive failure.
The Hard Drive in the Landfill: $80 Million in Inaccessible Bitcoin
Hardware wallet (single key)
In the early years of Bitcoin adoption, a miner accumulated a substantial holding on a single hard drive. At the time of disposal, the device contained Bitcoin
10 BTC Locked on Obsolete Sony Memory Stick: The Format Obsolescence Problem
Software wallet
A Bitcoin holder retained approximately 10 BTC from 2010 mining operations stored on a Sony Memory Stick, one of several proprietary formats Sony introduced in
Android Smartphone Theft: Bitcoin Recovery via Archived Email Wallet Backup
Software wallet
An Android smartphone user experienced theft of an older device worth approximately $80. The phone contained a mobile wallet application with roughly $150 in Bi
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