Blockchain.com · Wallet recovery

Blockchain.com Wallet Recovery: Lost Password, Wallet ID & Legacy Phrases (2026)

Can you recover a Blockchain.com wallet without the password? Often, yes. KeychainX has recovered Blockchain.com and legacy Blockchain.info wallets since 2017, including lost main passwords, forgotten second passwords, lost Wallet IDs, and the old 13–21-word legacy mnemonics that modern software no longer accepts. Recovery works from your wallet backup or account details plus a description of the password — never the password itself. Legacy wallets from the Blockchain.info era are a KeychainX specialty documented in its published research. The assessment is free, the fee is 20% of the recovered value charged only on success, and no legitimate service asks for payment in advance.

Wallet or trading account? Check this first

Blockchain.com runs two different products, and they fail differently. The trading account is custodial — Blockchain.com holds the keys — so if that is what you are locked out of, only their official support can help, and any “recovery service” claiming otherwise is not being honest. The wallet (the original Blockchain.info product) is non-custodial: it is an encrypted file identified by a Wallet ID, the password never leaves your side, and that is exactly why a forgotten password is recoverable. Everything below is about the wallet.

Step zero: your Wallet ID

The Wallet ID — a long code like a serial number — identifies your wallet and anchors every recovery. Retrieve it through Blockchain.com’s official account-recovery flow, which emails it to the address on file. You never type a password anywhere to get it. One of our best-known recoveries started with nothing but a Wallet ID reminder e-mail and a good hint — $100k in Bitcoin recovered from a conference conversation.

The main password

Your password is not stored anywhere — it derives the key that decrypts the wallet file (wallet.aes.json). Blockchain.com stretches each password guess through heavy key-derivation, and the iteration count grew over the years, so blind brute force is hopeless. What works is a structured search built from your real memory — length, fragments, reused passwords, keyboard language, the year — run offline on our own GPU hardware against your encrypted backup. The encryption format changed roughly five times (v1 through v5); identifying your wallet’s version first means applying the right decryption path instead of wasting compute on the wrong one. The earliest v1 wallets even carry documented quirks that make some “impossible” passwords findable.

The second password

Many wallets from this era have an optional second password required to spend. People forget it constantly, because it was rarely typed: you can see your balance but cannot move a satoshi. It is recovered the same way as the main password — offline, candidates against the encrypted data — and it is one of the most common Blockchain.com cases we take.

The 15–21-word legacy phrase

If your backup is a phrase of 15, 17, 19 or 21 words that the current site refuses to import, nothing is wrong with your wallet. Those are legacy, non-BIP39 mnemonics from the early Blockchain.info era, and modern software simply dropped support for them. With the original derivation logic the phrase still opens the wallet — and an incomplete or shuffled phrase can often be rebuilt against your known address. We documented a full rebuild of a 17-word Blockchain.info mnemonic as a case study.

Lost the wallet file?

Early Blockchain.info e-mailed encrypted backups (wallet.aes.json) — search your old inboxes for “wallet backup” before assuming it is gone. We can work from any encrypted backup, however old. If the file lived on a dead or formatted drive, forensic file carving can often bring it back first, then the password search runs on the recovered file.

The oldest wallets (2011–2012)

Wallets created before Wallet IDs existed used a phone number or username as the identifier. These are the hardest cases, and sometimes not recoverable at all — we say that up front rather than take a hopeless case. A 2015 window of the Android app also shipped a weak random-number generator; if your wallet dates from that period, tell us — the same weakness that was a security problem can narrow a recovery search.

Why we solve cases others return

We have tracked Blockchain.info’s wallet source code across every format change since 2011 — the version-by-version encryption differences, the legacy mnemonic derivation, the Android RNG flaw. That research, not raw hardware, is why wallets other services return as impossible get opened here. KeychainX has recovered wallets since 2017 — 1000+ clients, ~79% success rate, on a 20% success-based fee — as a Swiss AG registered in Baar, Zug. The hands-on self-help version of this page is our DIY Blockchain.com recovery guide.

What we can’t do

Trading accounts (custodial — only Blockchain.com support can help). Wallets with no Wallet ID and no backup of any kind. A public address alone — there is nothing to decrypt. Stolen or scammed funds — transactions cannot be reversed, and anyone promising that is running a scam. If your case is not viable, we tell you at no charge.

What you should never do

Never enter your password, Wallet ID or recovery phrase into any website, form, Telegram bot or AI chatbot — including sites that look like Blockchain.com. Legitimate recovery works offline from your encrypted backup. We never contact you first and never ask for payment upfront; anyone doing either while using our name is a scammer.

Frequently asked questions

How do I find my Blockchain.com Wallet ID?
Use Blockchain.com’s own official account-recovery process, which emails the Wallet ID to the address on file. If you used several wallets over the years you may receive several IDs. You never need to enter a password anywhere to get it.

I forgot my second password. Can it be recovered?
Usually yes. The second password is searched the same way as the main one — offline, from your encrypted backup, using a candidate list built from what you remember. It is one of the most common Blockchain.com cases we see.

My 15, 17, 19 or 21-word phrase won’t import. Is the wallet lost?
No. Those are legacy, non-BIP39 mnemonics that the current site no longer imports. With the original derivation logic the phrase still opens the wallet, and a partial or out-of-order phrase can often be rebuilt against your known address.

Can you recover my Blockchain.com trading account?
No — and neither can any recovery service. The trading account is custodial: Blockchain.com holds the keys, so only their support can restore access. We recover the non-custodial wallet side: your Wallet ID plus encrypted wallet data.

Do I have to give you my password or seed to start?
No. To assess a case we need your Wallet ID situation, roughly what you remember about the password, and the wallet’s age — never the secrets themselves. Work runs offline from your encrypted backup under a signed agreement.

How much does Blockchain.com wallet recovery cost?
Success-based: a percentage of the recovered value, agreed before we start, payable only if we open the wallet. No upfront payment.