Part of the CustodyStress archive of observed Bitcoin custody incidents
Device Discarded — Software wallet
Cases where a mobile or desktop wallet device was discarded without securing the keys. Most cases involve computers or phones disposed of during hardware upgrades.
62 cases in this intersection. 79% of determinate cases resulted in a blocked outcome and 21% in access survived. The most common recovery path is no path available.
19
Blocked
0
Constrained
5
Survived
38
Indeterminate
79% of determinate cases resulted in blocked or constrained access.
62 observed cases
Blocked
19 (31%)
Survived
5 (8%)
Indeterminate
38 (61%)
Hard Drive Format Recovery: 2 BTC Restored via Sector Scanning and wallet.dat Reconstruction
Software wallet
In approximately 2015, marilyn4325 formatted a hard drive and installed Windows 10, intending to preserve wallet data via backup first. However, the backup beca
ASUS Netbook Wallet Deletion: Corrupted Files Block $9,000 Recovery Effort
Software wallet
In January 2014, Igor76200 purchased a second-hand ASUS Eee PC 1001PX netbook and created approximately 5–6 Bitcoin wallets on it on January 7, 2014. The user c
Armory Wallet Lost via VirtualBox Snapshot Rollback—Binary Recovery Attempt
Software wallet
In October 2013, a BitcoinTalk user known as HowlingMad lost access to 6.59159344 BTC stored in Armory, a then-leading Bitcoin wallet application running on Win
Encrypted Wallet Recovery After Accidental Partition Deletion (2013)
Software wallet
On July 17, 2013, a Bitcoin holder identified as Praxis posted to a cryptocurrency forum after losing access to multiple wallet files stored in hidden Linux dir
1,000 BTC Permanently Lost After Brother Deletes wallet.dat From Shared Dropbox Folder
Software wallet
In 2017, Hacker News user illumin8 disclosed a permanent loss of 1,000 BTC resulting from a wallet file deletion in a shared Dropbox folder. The Bitcoin wallet
James Howell's 8,000 Bitcoin Hard Drive: Landfill Loss Without Backup
Software wallet
James Howell, a computer professional based in Wales, accumulated approximately 8,000 Bitcoin during the early mining era through a combination of mining and ac
Multibit Wallet Lost After Mac Reformat Without Backup
Software wallet
In November 2013, a BitcoinTalk user identified as funkonaut posted about losing access to their Bitcoin holdings following a critical self-inflicted data loss
Bitcoin-Qt Wallet Loss: Executable Backup Without Private Key File (2013)
Software wallet
TheD1ceMan, a forum user, experienced an irrecoverable loss of approximately 1.8 BTC (valued at $2,300–$2,700 USD at May 2013 market prices) due to a critical m
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
Australian Miner Loses Early Bitcoin When Sole USB Backup Drive Fails Irrecoverably
Software wallet
Alex, an Australian Bitcoin miner based in Melbourne, mined Bitcoin around 2010 when mining was still a hobbyist activity with negligible monetary value. Unlike
Maxime: Hard Drive Corruption Destroyed Only Copy of Seed Phrase
Software wallet
Maxime, a Canadian journalist, began mining Bitcoin during the 2012–2013 period when the technology represented an emerging alternative financial system. He suc
Multibit Wallet Recovered From Formatted Hard Drive After 5 Years
Software wallet
In 2013, a Bitcoin holder stored funds in a Multibit wallet on a work desktop computer. The hard drive was subsequently formatted, and the user assumed the Bitc
Mac Formatted Without Backup: wallet.dat Recovery Attempt (2012)
Software wallet
On July 5, 2012, forum user Mashrock reported formatting a Mac computer running OS X 10.7 and subsequently losing access to Bitcoin stored in a wallet.dat file.
Private Key Accessible but Wallet Balance Unrecoverable: bread45's 2011 Mt.Gox Withdrawal
Software wallet
In June 2011, bread45 purchased Bitcoin on Mt.Gox and transferred coins to Bitcoin-QT desktop wallet software for self-custody. In 2012, the user accidentally d
Scattered Wallet Fragments: Passphrase Known, Decryption Blocked by Checksum Failure
Software wallet
Between 2011 and 2012, a user mined Bitcoin using Bitcoin-QT on a personal computer. Lacking technical knowledge about the software and wallet format, he delete
Unauthorized Drive Format and Corrupted Wallet File Recovery Failure (2011)
Software wallet
On September 17, 2011, a Bitcoin holder identified as cablepair discovered that an office network administrator had reformatted the hard drive of a shared offic
Formatted Computer, Lost Wallet.dat Access—Recovered via Time Machine Backup
Software wallet
On July 3, 2011, forum user Omega0255 reported a critical custody error with a 1 BTC mining pool payment. The user had formatted their SSD drive using a secure
Corrupted wallet.dat Recovery After Hard Drive Failure: 2011 Case Study
Software wallet
In May 2011, forum user zrataj (John) experienced a critical storage failure when his hard drive crashed, destroying both his primary wallet.dat file and the ba
Corrupted wallet.dat from 2011 Hard Drive — Fire Damage and Data Loss
Software wallet
In January 2021, a forum user known as 'french' reported discovering a wallet.dat file on a hard drive that had experienced both partial data erasure and fire d
Corrupted ext3 Hard Drive & Fragmented wallet.dat: HEX-Level Recovery Attempt (2011)
Software wallet
In June 2011, a Bitcoin holder identified as TurboIan reported catastrophic custody failure on a 65 GB ext3-formatted Linux hard drive. The drive suffered files
Device discarded — software wallet (2011)
Software wallet
In 2011, when Bitcoin mining was still largely a hobbyist pursuit, the user identified as 'bubbabojangles' mined 103 BTC using standard desktop equipment. At th
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
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
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
Browse by trigger and custody type
Forgotten Passphrase — Software wallet
Institutional Failure — Exchange custody
File Deleted — No Backup — Software wallet
Seed Never Recorded — Software wallet
Device Loss Without Backup — Software wallet
Physical Coercion — Software wallet
Passphrase Never Recorded — Software wallet
Physical Coercion — Hardware wallet (single key)
Forgotten Passphrase — Exchange custody
Device Loss — Software wallet
Exchange KYC / Account Lockout — Exchange custody
Exchange Collapse — Exchange custody
Seed Never Recorded — Hardware wallet (single key)
Owner Death — Software wallet
All cases
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