CustodyStress
ArchiveNo Designated Recovery Person › Device Loss
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.

Browse all archive sections — situations, patterns, dependencies, events →
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
Blocked 2024
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
Indeterminate 2024
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
Indeterminate 2023
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
Indeterminate 2021
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
Indeterminate 2021
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
Blocked 2020
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
Indeterminate 2019
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
Blocked 2019
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
Indeterminate 2018
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
Indeterminate 2018
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
Indeterminate 2017
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
Indeterminate 2017
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
Blocked 2017
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
Indeterminate 2017
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
Indeterminate 2017
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
Blocked 2016
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
Indeterminate 2015
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
Blocked 2013
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
Blocked 2013
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
Blocked 2012
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
Indeterminate 2012
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
Indeterminate 2012
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
Indeterminate 2011
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
Indeterminate 2011
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
Blocked 2011
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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Terms guide
Survived
Access remained possible under the reported conditions.
Constrained
Access remained possible, but only with delay, dependence, or significant difficulty.
Blocked
Access was not possible under the reported conditions.
Indeterminate
There was not enough information to determine the outcome.
Survivability
The degree to which a custody system maintains the possibility of authorized recovery under stress.
Archive inclusion criteria

This archive documents cases where a legitimate owner, heir, or authorized party encountered barriers accessing or recovering Bitcoin due to a failure in the custody arrangement. The central question for inclusion is: did the custody structure fail a legitimate access or recovery attempt?

A case must satisfy all three of the following to be included:

  1. Legitimate access attempt. The person attempting to access or recover the Bitcoin was the owner, a designated heir, an executor, a legal authority, or another party with a legitimate claim — not a thief, attacker, or unauthorized third party.
  2. Custody structure failure. The failure was caused by a property of the custody arrangement — missing credentials, structural dependencies, documentation gaps, knowledge concentration, legal barriers, or institutional constraints — not market conditions, individual-level fraud or theft, or protocol-level issues. Platform-level failures that block legitimate user access are in scope regardless of their cause.
  3. Documentable outcome or access constraint. The case must have a stated or inferable outcome: access blocked, access constrained, access delayed, or access eventually achieved through a recovery path. Cases with entirely unknown outcomes are included only where the structural failure is documented and the constraint is unambiguous.
  • Owner death or incapacity — Bitcoin held in self-custody that becomes inaccessible to heirs or designated parties because credentials, documentation, or operational knowledge were not transferred
  • Passphrase loss — BIP39 passphrase forgotten or unavailable, blocking access to a funded wallet even where the seed phrase is present
  • Seed phrase or wallet backup unavailable — no independent recovery path existed or the backup was destroyed, lost, or never created
  • Device loss without independent backup — hardware wallet, phone, or computer lost or destroyed with no recovery path outside the device
  • Documentation absent or ambiguous — heirs or executors cannot determine that Bitcoin exists, which wallet holds it, or how to access it
  • Knowledge concentration — only one person knew the procedure, passphrase, or access method; that person is dead, incapacitated, or unreachable
  • Multisig quorum failure — a threshold signature arrangement cannot be completed because signers are unavailable, uncooperative, incapacitated, or have lost their keys
  • Legal authority / access mismatch — a court order, probate ruling, or power of attorney establishes legal entitlement but provides no technical path to access
  • Institutional custody barrier — exchange or platform hacks, insolvency, regulatory seizure, or operational failure that caused a access constraint or failure for legitimate users, whether temporary, prolonged, or permanent. The failure of the custodian to remain available or solvent is itself the in-scope event.
  • Forced relocation or geographic constraint — physical access to a device or location required for recovery is blocked by displacement, border restrictions, or political circumstances
  • Coercion — the holder was compelled under threat to transfer Bitcoin or disclose credentials during an access event
  • Hidden asset discovery — heirs or executors locate a wallet or account but cannot access it due to missing credentials or operational knowledge
  • Market losses, investment losses, yield scheme losses, or Ponzi scheme losses
  • Hacks or theft targeting an individual's personal security (phishing, SIM swap, social engineering, malware) where the custody architecture itself did not fail
  • Unauthorized transfers where the holder's custody system was not the cause of the failure
  • Ordinary transaction mistakes — wrong-address sends, fee errors, mistaken amounts
  • Protocol-level failures — cryptographic vulnerabilities, consensus bugs, firmware integrity failures
  • Deliberate burns or tribute burns
  • Cases where the stated loss is unverifiable and no structural custody failure is described

Cases are drawn from public sources including forum posts, news reporting, court documents, academic research, and direct submissions. Each case is reviewed against the inclusion criteria above before publication. Source material is retained and available on request for documented cases.

The archive is observational and descriptive. It does not attempt to document all Bitcoin custody failures — only those meeting the criteria above with sufficient documentation to describe the structural failure and its outcome.

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