Part of the CustodyStress archive of observed Bitcoin custody incidents
Device Discarded
Cases where a device containing wallet data was discarded, sold, or destroyed without first securing the seed phrase or wallet backup. The private key material was lost with the device.
device discarded cases show an 81% blocked rate among determinate outcomes. In most cases no viable recovery path existed.
22
Blocked
0
Constrained
5
Survived
41
Indeterminate
81% of determinate cases resulted in blocked or constrained access.
68 observed cases
Blocked
22 (32%)
Survived
5 (7%)
Indeterminate
41 (60%)
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
50btc Pool Mining Loss: 2–3 BTC Trapped in Defunct Pool, Virtual Disk Recovery Failed
Exchange custody
In 2010, a user identified as Zagal downloaded and ran 50miner, a mining client for the 50btc pool, on his personal computer for approximately one week. During
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 Miner Loses 50 BTC: Private Key Gone, Wallet.dat Scattered Across Backup Media
Software wallet
In August 2017, a Bitcoin user (username lozzauk) posted on BitcoinTalk describing loss of access to a wallet containing approximately 50 BTC plus additional al
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
2009 Bitcoin Purchase Lost to Paper Backup Destruction and Device Absence
Software wallet
Plinxer, a BitcoinTalk user, posted in May 2023 describing a Bitcoin purchase made in 2009 for approximately £50 (then ~$60–65 USD). The transaction occurred vi
2009 Bitcoin Mining Wallet Recovery: Fragmented wallet.dat on Deleted Drive
Software wallet
TheMadGenius07 downloaded and briefly mined Bitcoin on a high-performance gaming rig in summer 2009, then uninstalled the Bitcoin application when mining activi
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
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
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
Android Bitcoin Wallet Destroyed in Factory Reset: 0.5 BTC Unrecovered
Software wallet
A Bitcoin holder maintained approximately 0.5 BTC using the Bitcoin Wallet application by Andreas Schildbach on a Samsung Galaxy Note 2 running Android. The hol
James Howells: 7,500 Bitcoin Lost to Landfill Disposal Without Backup
Software wallet
James Howells stored the private keys to 7,500 Bitcoin on a standard 2.5-inch laptop hard drive, which he placed in a drawer. After several years, the drive was
UK Court Blocks Landfill Excavation for Lost Bitcoin Hard Drive
Hardware wallet (single key)
A Bitcoin holder in the United Kingdom accidentally discarded a hard drive containing an unknown quantity of Bitcoin among household waste. The device was trans
Trigger categories
Forgotten Passphrase
Physical Coercion
Institutional Failure
Seed Never Recorded
File Deleted — No Backup
Passphrase Never Recorded
Device Loss Without Backup
Owner Death
Passphrase Unavailable
Device Loss
Exchange Collapse
Exchange KYC / Account Lockout
Passphrase Loss
Credential Loss
Platform Failure
Hardware Wallet PIN Loss
File Corruption
Institutional Custody Failure
Seed Backup Unavailable
All cases
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