Part of the CustodyStress archive of observed Bitcoin custody incidents
Passphrase Never Recorded
Cases where a BIP39 passphrase was set during wallet creation but never written down or stored separately from the seed phrase. The passphrase was required to derive the correct extended keys.
passphrase never recorded cases have a 45% survival rate among determinate outcomes — one of the higher recovery rates in the archive. The most common recovery path is no path available.
Archive analysis — 37 cases
Outcomes
55% of determinate cases resulted in blocked access — 14 percentage points below the archive-wide average of 69%. 45% resulted in recovered access — above the archive average.
Documentation coverage
70% of cases have indeterminate outcomes — higher than the archive average of 43%.
Custody type
59% of cases involved software wallet, followed by exchange custody at 35%.
Primary stress condition
59% of cases involve passphrase unavailable. Seed phrase unavailable accounts for a further 27%.
Documentation
70% of cases had partial documentation — insufficient to complete recovery without the holder's direct involvement.
Structural dependency
92% of cases carry a passphrase dependency dependency tag — the most common structural factor in this subset.
6
Blocked
0
Constrained
5
Survived
26
Indeterminate
55% of determinate cases resulted in blocked or constrained access.
37 observed cases
Blocked
6 (16%)
Survived
5 (14%)
Indeterminate
26 (70%)
Blockchain.com Wallet Inaccessible: Primary Password Works, Secondary Password Lost, Legacy Seed Incompatible
Exchange custody
In December 2024, a Bitcoin holder retrieved an encrypted wallet backup from Dropbox containing credentials for a Blockchain.info (now Blockchain.com) account o
Forgotten BIP39 Passphrase: BTCRecover Brute-Force Fails to Recover Access
Software wallet
JMASTERJ, a BitcoinTalk forum user, discovered a critical access failure in a self-custody wallet setup using a 12-word BIP39 seed phrase combined with an addit
Samourai Wallet Seizure: Recovering Bitcoin After Platform Shutdown
Software wallet
On April 28, 2024, a BitcoinTalk user reported that Bitcoin deposited to their Samourai Wallet became inaccessible following the FBI's shutdown of the platform.
Trezor Passphrase Forgotten After Factory Reset — Successful Recovery via Community Support
Hardware wallet with passphrase
BTCRSMD, a moderately experienced Bitcoin user, executed a deliberate custody strategy in July 2024. The user purchased Bitcoin via Swan and routed the coins th
180 BTC Lost Due to Forgotten Custom SHA256 Passphrase; Year-Long Manual Recovery Attempt
Software wallet
In January 2022, a BitcoinTalk user (k844738i) disclosed a critical custody failure spanning approximately one year. The user had created a Bitcoin wallet years
MultiBit Classic Wallet Password Lost, No Seed Phrase Documented (2014)
Software wallet
In January 2021, a user identified as mr_fish2021 recovered an old Windows computer containing a MultiBit Classic wallet created in 2014. The wallet held an und
Incomplete BIP39 Seed Recovery: 11 Words, Missing Documentation, Unknown Outcome
Software wallet
On January 9, 2021, BitcoinTalk user P.hanseens posted a technical support request describing inaccessible Bitcoin secured by a 12-word BIP39 seed phrase with o
Bitcoin Core Wallet Password Access Anomaly: Selective Failure Across Change Outputs
Software wallet
In early January 2021, a couple recovered a legacy hard drive containing a Bitcoin Core wallet with accumulated mining rewards and promotional Bitcoin distribut
250 LTC Custody Failure: Lost Passphrase, No Recovery Path
Software wallet
In January 2021, a BitcoinTalk forum user identified as realman123 disclosed a custody failure involving approximately 250 Litecoin stored in a Litecoin Core de
Multibit Wallet Recovery Failure: Invalid 16-Word Seed Phrase After 7 Years
Software wallet
NickyGH established a Multibit wallet in 2014 at a Bitcoin education event held in Shoreditch, London. A technician guided the setup and instructed the user to
BIP38-Encrypted Paper Wallet: Forgotten Passphrase Blocks Access
Software wallet
On 12 January 2021, a Bitcoin user with the forum handle abashai posted to the BitcoinTalk Technical Support forum describing a custody access failure involving
BIP38 Passphrase Loss: Paper Wallet Rendered Inaccessible
Software wallet
In January 2021, a BitcoinTalk user (handle: abashai) discovered a critical custody access failure after generating a paper wallet with BIP38 encryption. The us
Five Old Blockchain.info Wallets Inaccessible: Non-Standard Recovery Phrases Beyond Recovery Tools
Exchange custody
In July 2020, forum user gbola reported discovering five old Blockchain.info recovery phrases originating from approximately 2014, when the user's family were e
Blockchain.com Wallet Locked: Partial Recovery Phrase and Lost Secondary Withdrawal Password
Exchange custody
In September 2020, a BitcoinTalk user identified as sa14 reported complete inability to access a Blockchain.com wallet created on November 29, 2017, despite pos
Electrum Seed Phrase Mismatch: Valid Addresses, Missing Funds
Software wallet
In January 2018, forum user 'thenarog' encountered a nuanced custody failure involving an Electrum desktop wallet. The user held a wallet.dat backup file protec
Paper Wallet QR Code Case Mismatch: Single Character Locked Access for 2.5 Years
Software wallet
Al Reno generated an offline paper wallet using bitaddress.org in August 2018, manually printing both public and private keys with QR codes to physical paper. H
4 BTC Inaccessible in BIP38-Encrypted Paper Wallet After Passphrase Loss
Software wallet
In February 2018, a Bitcoin holder discovered that access to 4 BTC distributed across three BIP38-encrypted paper wallet addresses had become impossible due to
Lost Final Word of Ledger Nano S 24-Word Seed: 110,000 Dogecoin Case
Hardware wallet (single key)
On March 8, 2018, a BitcoinTalk forum user identified as Ma1k reported losing the 24th word of a Ledger Nano S BIP39 recovery seed phrase. The loss occurred aft
Blockchain.info Watch-Only Import Without Private Key Retention
Exchange custody
In June 2017, a Bitcoin Talk forum user (amirheavy666) discovered that approximately 0.00027375 BTC accumulated on a Blockchain.info wallet created around 2014
Institutional lockout — exchange custody (2017)
Exchange custody
Between 2014 and 2015, the user created cryptocurrency accounts on blockchain.info and retained the mnemonic seed phrases. By December 2017, the user attempted
Hive Wallet Litecoin Loss: 12-Word Seed Phrase Never Documented
Software wallet
PentagonPinnacle purchased litecoins several years before May 2017 and installed them in a Hive Wallet application on an iPad. At the time of wallet creation, t
Blockchain.info Account Lockout: Forgotten Password and Missing Recovery Phrase (2013 Wallet)
Exchange custody
A BitcoinTalk forum user identified as MARK 888 reported in October 2017 that they had lost access to a Blockchain.info wallet created around 2013. The user ret
Hidden Line Feed Character Blocks Bitcoin Core Wallet Access
Software wallet
In February 2017, scutzi128 documented a Bitcoin Core wallet access failure on the Bitcoin Technical Support forum. The user had encrypted their wallet with a 2
Teenager Locked Out of Blockchain.info Wallet After Password Change – No Seed Backup
Exchange custody
In late October 2017, a Russian Bitcoin user (forum username: see123123) discovered they could no longer access their Blockchain.info hosted wallet. The user ha
BIP38 Paper Wallet Passphrase Lost — 0.7 BTC Inaccessible (2020)
Software wallet
A BitcoinTalk user (arkaraj) purchased approximately 0.7 BTC in 2017 and generated a paper wallet using bitaddress.org with BIP38 passphrase encryption. The use
Trigger categories
Forgotten Passphrase
Physical Coercion
Institutional Failure
Device Discarded
Seed Never Recorded
File Deleted — No Backup
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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