Guide . Blockchain.com

How to recover a Blockchain.com password

A safe, practical guide to getting back into an old Blockchain.info or Blockchain.com wallet — what you need, what the passwords do, and what to try before asking for help.

Updated July 2026 · KeychainX — Wallet Recovery since 2017

This is the hands-on companion to our Blockchain.com recovery page. Old Blockchain.info wallets get stuck for a few predictable reasons; here’s how to work through them safely.

Step 1: get your Wallet ID

A Blockchain.com wallet is identified by a Wallet ID (a long code). It’s the anchor for everything, so retrieve yours through Blockchain.com’s own official account-recovery process, which emails your Wallet ID to the address on file. If you had more than one wallet over the years, you may receive more than one ID. You never share your password to get this — it just identifies the wallet.

Step 2: know which password you’ve lost

These wallets have a main password that unlocks the wallet and, often, an optional second password required to spend. People forget the second one constantly because it’s rarely used — you can see the balance but can’t move it. Work out which you’re missing, because it changes the recovery. If you remember one but not the other, that’s a common and solvable situation.

Step 3: rebuild your password memory

Write down everything you can: the likely length, fragments, passwords you reused elsewhere, and the year you created the wallet. Blockchain.com stretches passwords with many rounds of key-derivation, so each guess is expensive — which means a good hint is worth far more than raw speed. A structured list built from real memory is what makes recovery finish.

Step 4: the old 15–21 word phrase

If your backup is a word phrase of 15, 17, 19 or 21 words that the current site won’t import, that’s expected — it’s a legacy, non-BIP39 format Blockchain.com dropped support for. The wallet isn’t lost; the phrase just needs the original derivation logic, and a partial or out-of-order phrase can be rebuilt against your known address. This part is not really DIY, but knowing what you have tells you it’s recoverable.

Step 5: check how old the wallet is

Age matters. Wallets from the 2011–2012 era, before Wallet IDs, used a phone number or username as the identifier and are the hardest — sometimes unrecoverable. From the Wallet-ID era onward, recovery is realistic with the ID and a password hint. The format of your backup and identifier usually reveals which era you’re in.

Why these wallets get stuck

Blockchain.info ran one of the first web wallets, and its format changed repeatedly between 2011 and today. That history is the whole reason old wallets stick: a password that once worked, a second password nobody remembers setting, or a backup phrase in a format the current site no longer imports. None of that means the coins are gone — the wallet still exists on-chain. It means the way in has drifted out of the modern toolset, and reaching it depends on understanding how that specific version encrypted and stored its keys.

After you recover

When you’re back in, move the funds out of the old Blockchain.info wallet and into a current wallet you control, then back up its seed phrase on paper, stored separately from any device. These early wallets predate modern standards, so keeping value in them long-term isn’t worth the fragility — recover, migrate, and back up properly.

Quick recap

To recover a Blockchain.com wallet, in order: get your Wallet ID through Blockchain.com’s official account-recovery (it’s the anchor); identify which password you’ve lost — main, second, or both; rebuild your password memory into a real candidate list, since good hints beat raw speed against the heavy key-derivation; handle the legacy 15–21 word phrase separately if that’s your backup, as the modern site won’t import it; and check the wallet’s era, since the earliest phone-number wallets are the hardest. Throughout, stay safe: never enter your password, Wallet ID or seed into any website to “recover” a wallet, and be wary of anyone who contacts you first. Legitimate recovery works offline from your encrypted backup — recover, then migrate the funds to a modern wallet and back it up properly.

When to get help

If you have your Wallet ID (or a legacy phrase) and a sense of the password but can’t get in, that’s the point to bring it to us. We work from your encrypted wallet backup entirely offline — nothing entered on any live site — searching password candidates or rebuilding a legacy phrase against your address, success-based and nothing upfront. Full detail is on the Blockchain.com recovery page.

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.

What we can’t do

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.

Frequently asked questions