Blockchain.com . Wallet ID

Recuperación de la contraseña del monedero de Blockchain.com

Can’t get into an old Blockchain.info or Blockchain.com wallet? With your Wallet ID and some memory of the password, recovery is usually possible — including the second password and old 15–21 word backup phrases.

Actualizado en julio de 2026 · KeychainX — Recuperación de carteras desde 2017

Blockchain.info — now Blockchain.com — ran one of the very first web wallets, and its format has changed many times since 2011. That long history is exactly why old wallets get stuck: a password that once worked, a second password nobody remembers setting, or a backup phrase written in a format the current site no longer supports. We’ve spent years reading how these wallets are encrypted, version by version, which is what makes recovery of the older ones possible where the official site gives up.

El ID del monedero es el punto de referencia

A Blockchain.com wallet is identified by a Wallet ID — a code that looks like a long string of letters, numbers and dashes. It’s the reference point for everything that follows, so the first step is retrieving yours. You can do that through Blockchain.com’s own official account-recovery process, which sends your Wallet ID to the email address on file. If you had more than one wallet over the years — the exchange side and the DeFi wallet are separate, for instance — you may receive more than one ID, so check each. Once you have it, we can take it from there. You never share your password with us to get started.

First password, second password

Blockchain.com wallets have a main password that unlocks the wallet, and many also have an optional second password that’s required specifically to spend or export keys. People forget the second one constantly, precisely because it’s used so rarely — you can log in and see your balance, but you can’t move anything. We recover both: the main password decrypts the wallet, and the second password unlocks spending. If you remember one but not the other, that’s among the most common and most solvable cases we see.

How recovery works

Recovery happens entirely offline, against your encrypted wallet backup — nothing is ever entered on a live site, and your funds are never touched until the password is back in your hands. We build password candidates from what you remember (a length, a fragment, a password you reused elsewhere, the year you created the wallet) and search them against the backup on dedicated GPU hardware, using masks and rules rather than blind guessing. Because Blockchain.com stretches the password with many rounds of PBKDF2 before decrypting, each guess costs real work — which is exactly why good hints, not raw speed, are what make a case succeed.

The 15 to 21 word backup phrase

Older Blockchain.info wallets used their own backup phrase — typically 15, 17, 19 or 21 words — in a scheme that predates and differs from the standard BIP39 seed the rest of the industry settled on. The current site no longer imports these directly, which strands a lot of people holding a phrase that simply “doesn’t work.” We can decrypt these legacy mnemonics, and we can also rebuild a phrase that’s incomplete, misspelled or out of order — testing valid combinations against your known receiving address until the wallet reconstructs exactly, with no ambiguity about whether it’s right.

Version history matters

Part of the work is simply identifying which era your wallet is from, because the encryption changed across versions (roughly v1 through v5). Each version stretched and stored the password differently, so applying the wrong method wastes effort. We’ve tracked those changes by studying the wallet source code over the years, which lets us match the exact decryption path to your specific wallet rather than guessing.

A note on the 2015 Android wallets

One specific case worth flagging: a period of the Blockchain.info Android app in 2015 suffered from a weak random-number generator, which affected how some keys and backups were generated. If your wallet dates from that window and behaves strangely, that history can actually work in your favour during recovery — the same weakness that was a security concern can narrow the search. If your wallet is from that era, tell us; it changes the approach.

The oldest wallets

The earliest wallets are the hardest. Those from the 2011–2012 era, before Wallet IDs, used a phone number or username as the identifier, and are sometimes not recoverable at all. From the Wallet-ID era onward, recovery is realistic with the ID and a password hint. If you’re unsure how old your wallet is, the format of your backup and identifier usually tells us.

Lo que no podemos hacer

If you have no Wallet ID and no backup phrase, there is usually no anchor to work from. If you only have a public address, that’s not recoverable. And the very earliest phone-number-only wallets often can’t be reached. We assess your specific case honestly before taking it, and we never charge upfront. Be wary of anyone who guarantees recovery or asks for money before doing any work — that is the pattern of a scam, not a real recovery service.

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