Part of the CustodyStress archive of observed Bitcoin custody incidents
No Designated Recovery Person — Device Loss
Cases where no second person had been prepared, designated, or informed sufficiently to execute recovery. This page shows archive cases where both conditions were present.
40% of all Device Loss cases in the archive involve this structural dependency. Among them, 95% of determinate cases resulted in a blocked outcome. The most common recovery path is password bruteforce.
21
Blocked
0
Constrained
1
Survived
21
Indeterminate
95% of determinate cases resulted in blocked or constrained access.
43 observed cases
Blocked
21 (49%)
Survived
1 (2%)
Indeterminate
21 (49%)
100 Bitcoin Lost on Unbackedup USB Flash Drive: Early Adopter Custody Failure
Software wallet
A BitcoinTalk forum user known as 'oktana' disclosed in March 2024 the loss of 100 bitcoins stored on a USB flash drive. The coins were acquired during Bitcoin'
Samsung Phone Mining Wallet: 0.7 BTC Inaccessible After Device Wipe
Software wallet
In February 2024, a BitcoinTalk user (onisuk20) rediscovered a Samsung phone containing Bitcoin holdings generated during the early mining period around August
Electrum Wallet Password Lost With Corrupted SSD Backup
Software wallet
On November 15, 2023, a BitcoinTalk user reported being unable to access an Electrum wallet after losing the 8–9 character password derived from a longer 15-cha
2011 Bitcoin Wallet on Heavily Reused Hard Drive: Data Fragmentation and Loss
Software wallet
In June 2021, a BitcoinTalk forum user (ice-gram) reported discovering an old hard drive containing a wallet.dat file with Bitcoin purchased in 2011. The drive
Electrum wallet.dat File Corruption After Hard Drive Failure—2015 Case
Software wallet
In early 2015, a user installed an offline version of Electrum wallet by mistake and deposited Bitcoin into it. Approximately 3 days after receiving the funds,
29 BTC Lost in Corrupted MultiBit Classic Wallet After Hard Drive Format
Software wallet
In 2014, JAMBO2014 acquired Bitcoin and stored it in MultiBit Classic 0.5.17, a desktop software wallet, without separately recording or backing up the private
Deleted Bitcoin Core Wallet Without Backup: Device Loss and File Recovery Attempt
Software wallet
SheriffBass purchased Bitcoin between 2009 and 2010 and stored it using Bitcoin Core, the reference implementation wallet that stores private keys in a wallet.d
Wallet.dat Corruption: BerkeleyDB Environment LSN Mismatch After File Migration
Software wallet
A user attempted to restore an old wallet.dat file by placing it in their .bitcoin directory and running bitcoind. The wallet file itself appeared structurally
Electrum Wallet Lost to Laptop Hardware Failure: No Seed Phrase Backup
Software wallet
On October 12, 2018, a BitcoinTalk forum user identified as Chabole007 reported losing access to an Electrum software wallet after their laptop experienced hard
Mobile Wallet Loss: Phone Format Destroys All Recovery Credentials
Exchange custody
On April 22, 2018, BitcoinTalk forum user Calypso_Dame reported a critical custody access failure resulting from a mobile phone format operation. The user had r
Corrupted Bitcoin QT wallet.dat: Undelete and Hex Editor Recovery Attempt
Software wallet
In March 2017, a Bitcoin user identified as Sammo619 described a custody failure involving a Bitcoin QT Core wallet created in 2014. All backups of the wallet.d
1,000 BTC Lost to Repeated Hard Drive Formats: 2009 Wallet Recovery Attempt
Software wallet
In January 2017, a BitcoinTalk forum user identified as myBitcoin2009 disclosed a custody failure spanning eight years. The user claimed to have received over 1
Bitcoin Core Wallet Lost When Computer Discarded Without Backup
Software wallet
In November 2017, a Bitcoin holder posted to Bitcoin Stack Exchange seeking recovery options after a critical custody failure. The user had purchased Bitcoin se
Lost Bitcoin on Offline IDE Drive: 2010 Purchase, 7-Year Gap, Unknown Recovery
Software wallet
Sara Smit posted to a Bitcoin forum on December 17, 2017, describing a custody failure spanning approximately seven years. She reported purchasing Bitcoin in 20
Accidental Wallet.dat Deletion on Mac SSD — Unrecoverable Bitcoin Loss
Software wallet
On November 2, 2017, a Bitcoin user identified as chrisf199 posted on BitcoinTalk seeking professional help to recover a wallet.dat file they had accidentally d
1,000+ BTC Permanently Lost: Multiple Hard Drive Formats Destroyed Wallet Data
Software wallet
In 2009, a teenager claiming to be an early Bitcoin adopter received over 1,000 BTC allegedly directly from Satoshi Nakamoto. The user stored the wallet on a de
Forgotten Bitcoin Wallet on Lost Amazon Fire Phone: Data Recovery Failure
Software wallet
In 2015, a friend transferred approximately $10 worth of Bitcoin to a user's Amazon Fire phone using a mobile wallet application as payment for donuts. The user
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
Deep Freeze Software Erases Bitcoin Wallet.dat Before Incoming Payment
Software wallet
In September 2012, a Bitcoin user operating under the handle blackjhon909 discovered that their Bitcoin wallet had become inaccessible following an unexpected s
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.
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
2010–2011 Windows XP GPU Mining Recovery: Unknown Pool, Lost Wallet Metadata, No Seed Record
Software wallet
ALANL ran continuous GPU mining on Windows XP using a GeForce 8800 GT graphics card for approximately three months in 2010–2011. The card eventually burned out
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
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