DefCrypt Blog
Practical analysis of exchange restrictions, AML, theft, and access recovery — without noise or blanket guarantees.
One Ledger Account Is Missing After Recovery: Check the Address Type and Passphrase
One Ledger account is missing after recovery? Compare old addresses, the Bitcoin account type, application and additional passphrase before resetting again.
Old Phone Still Has Your Crypto Wallet? What to Preserve Before Resetting It
Recovering a crypto wallet from an old phone starts with preserving the device and identifying the app, login and backups before a reset or reinstall.
Bitcoin Core Will Not Open an Old Wallet: Version Compatibility or Corruption?
Bitcoin Core will not open an old wallet? Distinguish an incorrect path, a locked file, an unsupported legacy format and corruption while preserving the original copy.
Bitcoin Watch-Only Wallet: Why You Can See a Balance but Cannot Spend It
A Bitcoin watch-only wallet can show real BTC without holding spending keys. Identify public-only data, an external signer and what recovery material is missing.
Forgot Your Ledger Passphrase? Why the Recovery Phrase May Not Restore Every Account
Forgot your Ledger passphrase? Separate the device PIN from the recovery phrase and hidden-account passphrase, preserve a working device and assess the next step.
Wallet Empty After Seed Phrase Recovery: What to Check
Check the network, account, seed format, passphrase and address history after restoring an empty wallet. Distinguish a display problem, different keys and outgoing transfers.
Bitcoin Core wallet.dat Recovery: Backups and Forgotten Passwords
How to assess a Bitcoin Core wallet.dat backup, distinguish corruption, encryption and watch-only data, preserve the original and evaluate a forgotten password.
How to Protect a Crypto Wallet: Seed, Hardware, Phishing
How to protect a crypto wallet: seed storage, hardware versus a hot wallet, phishing, token approvals, and extensions—prevention, not a post-hack recovery guide.
Crypto Inheritance After Death: First Steps Without a Seed Phrase
Crypto inheritance after the owner's death: a will does not open the wallet, when recovery is realistic, and why a seed phrase must not be sent to "inheritance services."
How to Recover a Bitcoin Wallet: Seed Phrase, wallet.dat or Old Device
Choose a Bitcoin wallet recovery route using a seed phrase, wallet.dat, backup or old device. Understand the limits of address-only and watch-only recovery.
How to Recover Crypto Wallet Access After Losing Your Phone
How to recover crypto wallet access after losing a phone: the role of a seed phrase, first steps, exchange 2FA, and why recovery bots are dangerous.
Lost Access to MetaMask: Restore Your Wallet and Missing Accounts
Lost access to MetaMask or missing an imported account after recovery? Check the seed phrase, private key, hardware wallet and original login method safely.
Ledger Recovery: Lost Device, Forgotten PIN or Missing Recovery Phrase
What to check after losing a Ledger device, PIN or recovery phrase. Recovery scenarios, separate passphrases, existing backups and missing balances.
Forgot Your Crypto Wallet Password? Check What You Can Recover
Forgot your crypto wallet password? Identify the wallet, preserved backup and missing credential before assessing restoration or a limited password search.
Partial seed phrase: when recovery is realistic
When recovery from a partial seed phrase is realistic, which BIP39 details improve feasibility, and why you should never submit a complete seed phrase through a form.